Author
- Card Section21
- Bibliography, Division of18
- Service for the Blind18
- Public Health Service16
- Books for the Adult Blind15
- Project: Books for the Adult Blind14
- Maps Division13
- National Advisory Committee for Aeronautics13
- Union Catalog13
- Reference Department12
- Orientalia Division11
- Hispanic Foundation10
- Periodicals Division9
- Information and Publications Office8
- Maps and Charts Division8
- Catalog Maintenance Division6
- Reading Room for the Blind6
- Copyright Division5
- Manuscripts, Division of5
- Navigation Bureau5