Directories Libraries -- 3 Directories -- 2 Information services -- 2 Computer-network resources -- 1 Equipment and supplies -- 1 Information sercives -- 1 more ... Information services 1 Learned institutions and societies -- 1 Library fitting and supplies industry -- 1 Library information network -- 1 Library services -- 1 Museums -- 1 Reference services (Libraries) 1 Universities and colleges -- 1 less ...