APA (7th ed.) Citation

Houghton, B., & Convey, J. (1984). Online information retrieval systems: An introductory manual to principles and practice (2nd ed.). C. Bingley.

Chicago Style (17th ed.) Citation

Houghton, Bernard, and John Convey. Online Information Retrieval Systems: An Introductory Manual to Principles and Practice. 2nd ed. London: C. Bingley, 1984.

MLA (8th ed.) Citation

Houghton, Bernard, and John Convey. Online Information Retrieval Systems: An Introductory Manual to Principles and Practice. 2nd ed. C. Bingley, 1984.