| ACORN PUB LIBR DIST | TZ8 |
| ALAN B SHEPARD HIGH SCH LIBR | T6DIL |
| ALBERTO-CULVER CO | TZ9 |
| ALLIANCE OF AM INSURERS | QG2 |
| ALSIP-MERRIONETTE PARK PUB LIBR | JCF |
| AMOS ALONZO STAGG HIGH SCH LIBR | TQ4 |
| ANDERSON-OGLESBY PUB LIBR | TW3 |
| ARGO CHSD #217 | TW4 |
| ARGONNE NAT LAB | ANL |
| BEDFORD PARK PUB LIBR DIST | TW7 |
| BEECHER HIGH SCH LIBR | OD5 |
| BEECHER PUB LIBR DIST | BQJ |
| BELLWOOD PUB LIBR | TW9 |
| BENEDICTINE UNIV | ICG |
| BENET ACAD, LIBR | TV2 |
| BERKELEY PUB LIBR | TV3 |
| BERWYN PUB LIBR | TV7 |
| BLOOM TOWNSHIP HIGH SCH LIBR | TV9 |
| BLOOM TRAIL HIGH SCH LIBR | T4QIL |
| BLUE ISLAND PUB LIBR | TU2 |
| BREMEN HIGH SCH LIBR | TU4 |
| BRIDGEVIEW PUB LIBR | TU5 |
| BROADVIEW PUB LIBR DIST | TU6 |
| BROOKFIELD FREE PUB LIBR | TU7 |
| BROOKFIELD ZOO LIBR | T5YIL |
| CALUMET CITY PUB LIBR | TT5 |
| CALUMET PARK PUB LIBR | TT6 |
| CARL SANDBURG HIGH SCH LIBR | T6QIL |
| CHELSEA ELEM SCH LIBR | TFGIL |
| CHICAGO HEIGHTS FREE PUB LIBR | TT9 |
| CHICAGO RIDGE PUB LIBR | TS6 |
| CHRIST HOSP & MED CTR LIBR | JIL |
| CICERO PUB LIBR | TS8 |
| CICERO SCH LIBR | TS9 |
| CLARENDON HILLS PUB LIBR | TR9 |
| CONAGRA FOODS | JWM |
| CONCORDIA UNIV | ICE |
| CRESTWOOD PUB LIBR DIST | TQ6 |
| CRETE PUB LIBR DIST | TQ7 |
| CRETE-MONEE HIGH SCH LIBR | TQ8 |
| DEVRY UNIV, TINLEY PARK CAM | T6YIL |
| DOLTON PUB LIBR DIST | TP4 |
| DOMINICAN UNIV | IBE |
| DOMINICAN UNIV, GRAD SCH LIBR & INFO SCI | JDE |
| DOWNERS GROVE N HIGH SCH LIBR | TP5 |
| DOWNERS GROVE PUB LIBR | JCX |
| DOWNERS GROVE S HIGH SCH LIBR | TQ3 |
| DWIGHT D EISENHOWER HIGH SCH LIBR | TQ2 |
| EISENHOWER PUB LIBR DIST | TP7 |
| ELMHURST COL | ICV |
| ELMHURST MEM HOSP | KAX |
| ELMHURST PUB LIBR | JBU |
| ELMWOOD PARK HIGH SCH LIBR | TO3 |
| ELMWOOD PARK PUB LIBR | TO2 |
| EVERGREEN PARK HIGH SCH LIBR | LE$ |
| EVERGREEN PARK PUB LIBR | TO5 |
| FENWICK HIGH SCH | TO6 |
| FIRST HEALTH | HT$ |
| FLOSSMOOR PUB LIBR | TO7 |
| FOREST PARK PUB LIBR | TO9 |
| FOSTER SCH LIBR | TFJIL |
| FRANKFORT JR HIGH SCH LIBR | TN9 |
| FRANKFORT PUB LIBR DIST | TM3 |
| G KERKSTRA MIDDLE SCH LIBR | TN8 |
| GLENWOOD-LYNWOOD PUB LIBR DIST | TM5 |
| GOODRICH SCH LIBR | ESLIL |
| GOODRICH SCH LIBR | GSLIL |
| GOTTLIEB MEM HOSP, MED LIBR | JSN |
| GOVERNORS STATE UNIV | IAF |
| GOWER MIDDLE SCH LIBR | TM7 |
| GRANDE PRAIRIE PUB LIBR DIST | TM8 |
| GREEN HILLS PUB LIBR DIST | TL4 |
| HAROLD L RICHARDS HIGH SCH | T6GIL |
| HARVEY PUB LIBR DIST | CF0 |
| HILLCREST HIGH SCH LIBR | T4UIL |
| HILLSIDE PUB LIBR | TL7 |
| HILLSIDE SCH DIST #93 | TL8 |
| HINSDALE CENT HIGH SCH LIBR | TK3 |
| HINSDALE HOSP | JWI |
| HINSDALE PUB LIBR | TL9 |
| HINSDALE S HIGH SCH LIBR | T6ZIL |
| HODGKINS PUB LIBR DIST | TK4 |
| HOLY CROSS HIGH SCH LIBR | TK5 |
| HOMETOWN PUB LIBR | TK6 |
| HOMEWOOD PUB LIBR DIST | JNG |
| HOMEWOOD-FLOSSMOOR HSD #233 | TK8 |
| HOOVER-SCHRUM SCH DIST #157 | TJ5 |
| IMMACULATE CONCEPTION HIGH SCH LIBR | TJ6 |
| IMMACULATE HEART OF MARY HIGH SCH | T7GIL |
| INDIAN PRAIRIE PUB LIBR DIST | TJ7 |
| INGALLS MEM HOSP | JIT |
| INTERNATIONAL TRUCK & ENGINE CORP | DGI |
| J STERLING MORTON HSD #201 | TJ8 |
| JACK HILLE SCH LIBR | TJLIL |
| JUSTICE PUB LIBR DIST | AAO |
| KIRBY SCH DIST #140 | AL2 |
| LAGRANGE MEM HOSP | JNW |
| LAGRANGE PARK PUB LIBR DIST | BCI |
| LAGRANGE PUB LIBR | BFI |
| LAGRANGE SCH DIST #102 | BFO |
| LAKEVIEW JR HIGH SCH LIBR | DGQ |
| LANSING PUB LIBR | BGI |
| LINCOLN SCH LIBR | T8GIL |
| LISLE COMMUN UNIT DIST #202 | BNI |
| LISLE JR HIGH SCH LIBR | TLQIL |
| LISLE LIBR DIST | BNO |
| LITTLE CO OF MARY HOSP | JIX |
| LYONS PUB LIBR | BQI |
| LYONS TOWNSHIP HIGH SCH LIBR | BTO |
| LYONS TOWNSHIP S HIGH SCH LIBR | T8KIL |
| MACNEAL HOSP LIBR | JBK |
| MAERCKER SCH DIST #60 | BUI |
| MARIAN CATHOLIC HIGH SCH LIBR | BUO |
| MATTESON PUB LIBR | BVI |
| MAYWOOD PUB LIBR DIST | BXI |
| MCCOOK PUB LIBR DIST | CFO |
| MEADOWVIEW SCH LIBR | MSLIL |
| MELROSE PARK PUB LIBR | CJO |
| MIDLOTHIAN PUB LIBR | CKI |
| MORAINE VAL COMMUN COL | JAM |
| MORTON ARBORETUM | JFI |
| MORTON COL LRNG RES CTR | ZS6 |
| MORTON E HIGH SCH LIBR | T7YIL |
| NANCY L MCCONATHY PUB LIBR DIST | DFO |
| NATIONAL CTR FOR FOOD SAFETY & TECH | NGH |
| NORTH HIGH SCH LIBR | HCI |
| NORTH RIVERSIDE PUB LIBR DIST | DIO |
| NORTHLAKE PUB LIBR DIST | DJI |
| OAK FOREST HIGH SCH LIBR | T5QIL |
| OAK FOREST HOSP, MED LIBR | JWJ |
| OAK LAWN HIGH SCH | T8RIL |
| OAK LAWN PUB LIBR | IVJ |
| OAK PARK HOSP, MED LIBR | OP2 |
| OAK PARK PUB LIBR | IUO |
| OAK PARK-RIVER FOREST HIGH SCH LIBR | JCI |
| ORLAND PARK PUB LIBR | DYJ |
| ORLAND SCH DIST #135 | DYO |
| PALOS COMMUN HOSP | JIY |
| PALOS HEIGHTS PUB LIBR | DZI |
| PALOS PARK PUB LIBR | DZZ |
| PARK FOREST PUB LIBR | JDA |
| PRAIRIE STATE COL | IDP |
| PRAIRIE TRAILS PUB LIBR DIST | FJO |
| PROVISO E HIGH SCH LIBR | T8VIL |
| REAVIS HIGH SCH DIST #220 | FOO |
| RICH CENT HIGH SCH LIBR | FPO |
| RICH E HIGH SCH LIBR | T9JIL |
| RICH S HIGH SCH LIBR | T9DIL |
| RICHTON PARK PUB LIBR DIST | FQI |
| RIDGE SCH LIBR | TFKIL |
| RIDGEWOOD HIGH SCH LIBR | FQO |
| RIVER FOREST PUB LIBR | FUI |
| RIVER GROVE ELEM SCH DIST #85.5 | RGE |
| RIVER GROVE PUB LIBR DIST | FUO |
| RIVERDALE PUB LIBR DIST | FVI |
| RIVERSIDE PUB LIBR | FWI |
| SAINT FRANCIS HOSP & HEALTH CTR | JNO |
| SAINT ISAAC JOGUES SCH | T9QIL |
| SAINT JAMES HOSP | JNP |
| SAINT JOSEPH HIGH SCH | HJ# |
| SAINT LAURENCE HIGH SCH LIBR | GGO |
| SCHILLER PARK PUB LIBR | FXO |
| SETON ACAD LIBR | FZO |
| SIPLEY SCH LIBR | SSLIL |
| SOUTH HOLLAND PUB LIBR | GFO |
| SOUTH SUBURBAN COL, LRNG RES CTR | IVT |
| SOUTH SUBURBAN HOSP | JNT |
| SOUTH-COOK INTERMEDIATE SERV CTR 4 | TO4 |
| STEGER S CHICAGO HEIGHTS PUB LIBR DIST | GIO |
| STICKNEY-FOREST VIEW PUB LIBR DIST | GYI |
| SUBURBAN LIBR SYST | IED |
| SUBURBAN LIBR SYST CLUSTER | JDP |
| SUMMIT PUB LIBR DIST | GYO |
| T F SOUTH HIGH SCH LIBR | T9UIL |
| THOMAS FORD MEM LIBR | HAO |
| THORNRIDGE HIGH SCH LIBR | THSIL |
| THORNTON PUB LIBR | HDI |
| THORNTON TOWNSHIP HIGH SCH LIBR | HFI |
| THORNWOOD HIGH SCH LIBR | TH2IL |
| TIMOTHY CHRISTIAN ELEM SCH LIBR | HFO |
| TIMOTHY CHRISTIAN HIGH SCH LIBR | HGO |
| TINLEY PARK HIGH SCH LIBR | T5UIL |
| TINLEY PARK PUB LIBR | HHO |
| TRINITY CHRISTIAN COL | AQ3 |
| TRINITY HIGH SCH LIBR | HIO |
| TRITON COL | IAW |
| UNIV PARK PUB LIBR DIST | HLI |
| V J ANDREW HIGH SCH LIBR | T6UIL |
| VETERANS ADMIN MED CTR, HINES | JHV |
| WALTHER LUTHERAN HIGH SCH LIBR | HMI |
| WEST SUBURBAN HOSP MED CTR | JCJ |
| WESTCHESTER PUB LIBR | HMO |
| WESTERN SPRINGS SCH DIST #101 | HPI |
| WESTLAKE COMMUN HOSP | JHB |
| WESTMONT PUB LIBR | HPO |
| WESTMONT USD #201 | HRI |
| WILLIAM LEONARD PUB LIBR DIST | HRO |
| WILLOW CREEK SCH LIBR | WCSIL |
| WOODRIDGE PUB LIBR | HUO |
| WOODRIDGE SCH DIST #68 | KFI |
| WOODRIDGE SCH LIBR | WSLIL |
| WORTH ELEM SCH DIST #127 | W3E |
| WORTH PUB LIBR DIST | KGI |
| YOUK COMMUN HIGH SCH LIBR | TP8 |
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