APA (7th ed.) Citation

Yu, C. T. (1973). Theory of indexing and classification.

Chicago Style (17th ed.) Citation

Yu, Clement T. Theory of Indexing and Classification. Ithaca, New York, 1973.

MLA (9th ed.) Citation

Yu, Clement T. Theory of Indexing and Classification. 1973.

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