Cita APA (7a ed.)

Sharp, J. R. (1970). Information retrieval: Notes for students. Andre Deutsch.

Cita Chicago Style (17a ed.)

Sharp, John R. Information Retrieval: Notes for Students. London: Andre Deutsch, 1970.

Cita MLA (9a ed.)

Sharp, John R. Information Retrieval: Notes for Students. Andre Deutsch, 1970.