Cita APA (7a ed.)

Ridley, D. D. (2002). Information retrieval: SciFinder and SciFinder Scholar. John Wiley.

Cita Chicago Style (17a ed.)

Ridley, D. D. Information Retrieval: SciFinder and SciFinder Scholar. Chichester [etc.]: John Wiley, 2002.

Cita MLA (9a ed.)

Ridley, D. D. Information Retrieval: SciFinder and SciFinder Scholar. John Wiley, 2002.