APA aipamena

Houghton, B., & Convey, J. (1977). On-line information retrieval systems: An introductory manual to principles and practice. Clive Bingley.

Chicago Style aipamena

Houghton, Bernard, and John Convey. On-line Information Retrieval Systems: An Introductory Manual to Principles and Practice. London: Clive Bingley, 1977.

MLA aipamena

Houghton, Bernard, and John Convey. On-line Information Retrieval Systems: An Introductory Manual to Principles and Practice. Clive Bingley, 1977.