Gaya APA

Schutze, C, D, M, P, R, H. (2009). An Introduction to Information Retrieval . London, Inggris.: Cambridge University Press.

Gaya MLA

Schutze, Christopher, D., Mannning, Prabhakar, Raghavan, Hinrich. "An Introduction to Information Retrieval". London, Inggris.: Cambridge University Press, 2009. Text.