Author
- Periodicals, Division of5
- Legislative Reference Division4
- Marine Corps4
- Prints and Photographs Division4
- Asiatic Division3
- Copyright Office, Library of Congress3
- Descriptive Cataloging Division3
- National Academy of Sciences3
- Rare Book Collection3
- Semitic Literature Division3
- Serials Division3
- Union Catalog Division3
- Law Division2
- Legislative Reference Services2
- Maps and Charts, Division of2
- Medicine and Surgery Bureau2
- Rare Books Division2
- Congressional Research Service1
- Construction and Repair Bureau1
- Cooperative Cataloging and Classification Service1