Cita APA (7a ed.)

Rijsbergen, C. J. v. 1. (1979). Information retrieval (2a. ed.). Butterworths.

Cita Chicago Style (17a ed.)

Rijsbergen, C. J. van 1943. Information Retrieval. 2a. ed. London: Butterworths, 1979.

Cita MLA (8a ed.)

Rijsbergen, C. J. van 1943. Information Retrieval. 2a. ed. Butterworths, 1979.