Cita APA (7a ed.)

Convey, J. (1992). Online information retrieval: An introductory manual to principles and practice (4th ed.). Library Association.

Cita Chicago Style (17a ed.)

Convey, John. Online Information Retrieval: An Introductory Manual to Principles and Practice. 4th ed. London: Library Association, 1992.

Cita MLA (9a ed.)

Convey, John. Online Information Retrieval: An Introductory Manual to Principles and Practice. 4th ed. Library Association, 1992.