Reference services Academic libraries 7 Reference services (Libraries) 4 Electronic reference services (Libraries) 3 Evaluation 3 Automation 2 Academic librarians 1 Computer programs 1 Cost accounting 1 Database searching 1 Effect of technological innovations on 1 Information storage and retrieval systems 1 Internet in library reference services 1 Libraries and the Internet 1 Online bibliographic searching 1 Public libraries 1 Reference librarians 1