Library science 31 Libraries 30 Information science 21 Library Science 19 Bibliothe`ques 17 Bibliothe ́conomie 15 School libraries 12 Information storage and retrieval systems 11 Pe ́riodiques 11 Bibliotheekwezen 10 Information Systems 10 Information Services 9 Academic libraries 8 Bibliotheekwetenschap 8 Informatiewetenschap 8 PUBLICACIONES PERIODICAS 8 Periodicals 8 Sciences de l'information 8 Bibliothek 7 Books and reading 7 Automation 6 Information Science 6 Information services 6 Instructional materials centers 6 Bibliotheekbeheer 5 Bibliotheken 5 Book industries and trade 5 Books 5 Documentaire informatie 5 Electronic information resources 5