Directories Computer network resources -- 2 Internet in library reference services 2 Computer network resources, handbook,manuals,etc 1 Electronic reference services (Libraries) 1 Evaluation 1 Handbooks, manuals, etc 1 more ... Information services 1 Internet -- 1 Internet searching 1 Library fitting and supplies industry -- 1 Library services -- 1 Reference services (Libraries) 1 Web sites 1 less ...