Academic libraries 9 Information services 8 Special libraries 8 Libraries 6 Reference services (Libraries) 6 Directories 5 Library science 5 Book selection 4 Collection development (Libraries) 4 Selection of nonbook materials 4 Administration 3 Associations, institutions, etc 3 Great Britain 3 Information resources 3 Internet in library reference services 3 Public services (Libraries) 3 Reference books 3 Case studies 2 Customer relations 2 External use of libraries 2 Handbooks, manual, etc 2 Libraries and adult education 2 Libraries and distance education 2 Libraries and readers 2 Library outreach programs 2 Library personnel management 2 Marketing 2 Public relations 2 Special collections 2 Computer-assisted instruction 1