Catalogs Bibliography 130 Motion pictures 46 History 45 Directories 42 Catalogs, Union 31 Filmstrips 31 more ... Music 31 Sound recordings 31 Electronic apparatus and appliances 28 Equipment and supplies 24 Art 23 Antiquarian booksellers 21 Booksellers' catalogs 21 Electronic industries 17 Collectors and collecting 16 Sources 16 Microcomputers 15 Handbooks, manuals, etc 13 Computer programs 12 Periodicals 11 Stars 11 Design 10 Manuscripts 10 Painting 10 Integrated circuits 9 Microprocessors 9 Semiconductors 9 Government publications 8 Private collections 8 Software 8 Antiquities 7 Audio-visual equipment 7 Computer software 7 Dictionaries 7 Foreign relations 7 Libraries 7 Library science 7 United States 7 Archives 6 Diesel motor 6 Manuscripts, Arabic (Papyri) 6 Paper money 6 Porcelain, Chinese 6 Art, Modern 5 Biography 5 Catalogues 5 Computer industry 5 Furniture 5 Imprints 5 Incunabula 5 Internal combustion engines 5 Porcelain 5 Postage stamps 5 Rare books 5 catalogs 5 Architectural drawing 4 Audio-visual aids 4 Carbides 4 Catalogs, Publishers' 4 Commercial art 4 Electronic circuits 4 Electronics 4 Gas-turbines 4 Information science 4 Linear integrated circuits 4 Motion picture producers and directors 4 Politics and government 4 Pottery 4 Pottery, Chinese 4 Prices 4 Radioisotopes 4 Science 4 Sealing compounds 4 Study and teaching 4 Technology 4 Adhesives 3 Advertising 3 Architecture, Modern 3 Archival resources 3 Art, Asian 3 Art, British 3 Art, Egyptian 3 Art, Japanese 3 Art, Tibetan 3 Building materials 3 Chemicals 3 Children's literature 3 China trade porcelain 3 Coatings 3 Computer storage devices 3 Decoration and ornament 3 Drugs 3 Electronics in military engineering 3 Engineering 3 Exhibitions 3 Fashion 3 Fashion design 3 Firearms 3 Illumination of books and manuscripts, Medieval 3 less ...