Library science 34 Libraries 31 Information science 28 Library Science 19 Information storage and retrieval systems 18 Bibliothe`ques 17 Bibliothe ́conomie 15 Documentation 12 School libraries 12 Pe ́riodiques 11 Bibliotheekwezen 10 Information Systems 10 Books and reading 9 Information Services 9 Science 9 Academic libraries 8 Bibliotheekwetenschap 8 Informatiewetenschap 8 PUBLICACIONES PERIODICAS 8 Periodicals 8 Sciences de l'information 8 Bibliothek 7 Automation 6 Bibliografías 6 Ciencia 6 Documentación científica 6 Information Science 6 Information services 6 Instructional materials centers 6 Bibliotheekbeheer 5