APA (7th ed.) Citation

Sharp, J. R. (1968). Some fundamentals of information retrieval (2.impr.). Deutsch.

Chicago Style (17th ed.) Citation

Sharp, John R. Some Fundamentals of Information Retrieval. 2.impr. London: Deutsch, 1968.

MLA (9th ed.) Citation

Sharp, John R. Some Fundamentals of Information Retrieval. 2.impr. Deutsch, 1968.

Warning: These citations may not always be 100% accurate.