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- Statistics14,307
- Periodicals13,732
- Handbooks, manuals, etc7,920
- Bibliography6,326
- Congresses4,697
- Maps4,533
- Directories1,978
- Catalogs1,655
- Rules and practice1,364
- Tables613
- Databases577
- Indexes539
- Case studies508
- CD-ROMs470
- Census, 21st, 1990461
- Census, 1990446
- Abstracts417
- Cartes415
- Classification389
- Census, 20th, 1980350