Congresses 907,129 Criticism, interpretation, etc 830,819 Conference papers and proceedings 624,228 Catalogs 359,310 Case studies 116,226 Commentaries 112,298 Correspondence 106,119 Controversial literature 64,380 Chamber music 63,095 Church history 60,791 Congress 56,194 Comic books, strips, etc 48,027 Cases 39,500 Comics (Graphic works) 39,476 Concertos 37,477 Congrès 31,064 Compact discs 30,275 Chronology 27,509 Caricatures and cartoons 26,492 Classification 24,924 Corporation reports 23,467 Cookbooks 23,304 Congrès 20,114 Comedy films 18,587 Catalogues d'exposition 18,510 Catalogues 16,918 Chronologies 16,861 Cross-cultural studies 15,614 CD-ROMs 14,563 Conference papers and proceedings 13,431 Census data 12,737 Collections 12,730 Conversation and phrase books 12,365 Cantatas 11,537 Catechisms 11,196 Computer network resources 9,488 Constitutions 8,392 Census 8,277 Concordances 8,078 Case Reports 7,130 Catalogues raisonnés 6,630 Charts, diagrams, etc 6,456 Court decisions and opinions 6,431 Cremation volumes 6,249 Constitution 6,223 Catalogs and collections 5,462 Comedies 5,407 Chapbooks 5,297 Conference proceedings 5,200 Casebooks (Law) 5,027 Charters 5,024 Critiques littéraires 4,741 Comparative studies 4,683 Catalog 4,662 Community cookbooks 4,603 Cookbook 4,464 Collected Work 4,443 Catalogues raisonnés 4,316 Census, 1990 4,312 Cartes géographiques 4,296 Compact discs (singles) 4,272 Congressional addresses 4,227 Charters and articles of incorporation 4,025 Comic books 3,876 Correspondance 3,856 Children's stories 3,809 Calendars 3,762 Claims 3,645 Constitutional amendments 3,574 Crime films 3,512 Church records 3,508 Congresses (form) 3,474 Comedy plays 3,396 Commercial treaties 3,323 Concert films 3,220 Christmas music 3,077 Cadastral maps 3,050 Census, 1980 3,038 Comedy 2,976 Christian fiction 2,953 Clippings 2,815 Catalogues raisonnés 2,772 Correspondance privée 2,673 Carols 2,621 Curricula 2,586 Computer games 2,579 Creeds 2,577 Chants et musique 2,561 Campaign literature 2,556 Census records 2,493 Carriers' addresses 2,468 Children's films 2,402 Chants 2,354 Composition and exercises 2,259 Computer music 2,194 Collected Works 2,186 Codices 2,052 Concerti grossi 2,021 Census, 2000 2,002 Controlled vocabularies 1,929