Cita APA (7th ed.)

Sharp, J. R. (1965). Some Fundamentals of Information Retrieval. A. Deutsch.

Cita Chicago (17th ed.)

Sharp, J. R. Some Fundamentals of Information Retrieval. London: A. Deutsch, 1965.

Cita MLA (9th ed.)

Sharp, J. R. Some Fundamentals of Information Retrieval. A. Deutsch, 1965.