APA (7th ed.) Citation

Kent, A. (1968). Textbook on Mechanized information retrieval. Interscience.

Chicago Style (17th ed.) Citation

Kent, Allen. Textbook on Mechanized Information Retrieval. New York: Interscience, 1968.

MLA (9th ed.) Citation

Kent, Allen. Textbook on Mechanized Information Retrieval. Interscience, 1968.