Cita APA (7a ed.)

Lancaster, F. W., & Warner, A. J. (1993). Information retrieval today (Rev., retitled, and expanded ed.). : Information Resources Press.

Cita Chicago Style (17a ed.)

Lancaster, F. Wilfrid, y Amy J. Warner. Information Retrieval Today. Rev., retitled, and expanded ed. Arlington, Va: : Information Resources Press, 1993.

Cita MLA (8a ed.)

Lancaster, F. Wilfrid, y Amy J. Warner. Information Retrieval Today. Rev., retitled, and expanded ed. : Information Resources Press, 1993.