APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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