APA (7th ed.) Zitazioa
Houghton, B., & Convey, J. (1977). On-Line Information Retrieval Systems: An introductory manual to principles and practice. Bingley; Linnet Books.
Chicago Style (17th ed.) Zitazioa
Houghton, Bernard, eta John Convey. On-Line Information Retrieval Systems: An Introductory Manual to Principles and Practice. London; Hamden, Conn: Bingley; Linnet Books, 1977.
MLA (9th ed.) Zitazioa
Houghton, Bernard, eta John Convey. On-Line Information Retrieval Systems: An Introductory Manual to Principles and Practice. Bingley; Linnet Books, 1977.
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