Machine-readable bibliographic data MARC formats 8 Congresses 6 Data processing 6 Automation 5 Standards 5 Cataloging 4 Library catalogs 4 Libraries 3 Bibliographical services 2 Cataloging, Cooperative 2 Directories 2 Exchange of bibliographic information 2 Information storage and retrieval systems 2 Library information networks 2 Bibliographical citations 1 Bibliography 1 Book industries and trade 1 CAIN (Information retrieval system) 1 CD-ROM 1 CD-ROMs 1 Cataloging of early printed books 1 Cataloging of nonbook materials 1 Cataloguing 1 Code numbers 1 Computer input-output equipment 1 Copyright 1 Costs 1 Depository libraries 1 Handbooks, manuals, etc 1