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| Z1003.8-Z1004 | Biography of bibliographers | ||
| Z1011-1017 | General bibliographies | ||
| Z1019-1033 | Special classes of books Including prohibited books, rare books, paperbacks, reprints | ||
| Z1035-1035.9 | Best books | ||
| Z1036 | Booksellers' general catalogs of modern books | ||
| Z1037-1039 | Books for special classes of persons, institutions, etc. | ||
| Z1041-1107 | Anonyms and pseudonyms | ||
| Z1201-4980 | National bibliography | ||
| Z1201-1946 | America | ||
| Z1215-1363 | United States | ||
| Z1365-1401 | Canada. British North America | ||
| Z1411-1939 | Mexico. Central America. West Indies. South America | ||
| Z1975 | Eastern Hemisphere | ||
| Z2000-2959 | Europe | ||
| Z3001-3496 | Asia | ||
| Z3501-3975 | Africa | ||
| Z4001-4980 | Australia. Oceania | ||
| Z5051-7999 | Subject bibliography Subjects arranged in alphabetical sequence | ||
| Z8001-8999 | Personal bibliography Names of individuals arranged in alphabetical sequence | ||
