انجمن كتابداران آمريكا

سرعنوان‌هاي موضوعي كتابخانه كنگره آمريكا و رده‌بندي دهدهي ديوئي

http://www.bids.ac.uk

BIDS (Bath Information and Data Services)

http://www.bookdata.co.uk

Book Data

http://www.bowker-saur.com/

Bowker-Saur

http://www.bubl.ac.uk

BUBL Information Service

http://www.butterworth.co.uk/

Butterworth

http://www.curl.ac.uk

CURL (Consortium of Research Libraries)

http://www.eirene.com

EIRENE (European Information Researcher Network)

http://www.iis.org.uk

Institute of Information Scientist

http://www.infoterm.org

INFOTERM

http://www.oclc.org

OCLC Online Computer Library Center Inc.

http://www.online-information-city.co.uk/

Online-Information

http://www.pa.tulsa.edu/nfais.html

NFAIS (National of Abstracting and Indexing Services)

http://www.rlg.org

Research Libraries Group, Inc.

http://www.silverplatter.com

Silver Platter Information

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