Cita APA (7th ed.)

Lancaster, F. W. (1979). Information retrieval systems: Characteristics, testing and evaluation (2nd ed.). John Wiley & Sons.

Cita Chicago (17th ed.)

Lancaster, F. Wilfrid. Information Retrieval Systems: Characteristics, Testing and Evaluation. 2nd ed. New York: John Wiley & Sons, 1979.

Cita MLA (9th ed.)

Lancaster, F. Wilfrid. Information Retrieval Systems: Characteristics, Testing and Evaluation. 2nd ed. John Wiley & Sons, 1979.