APA (7th ed.) Citation

Larson, R. R. (1991). Classification Clustering, Probabilistic Information Retrieval, and the Online Catalog.

Chicago Style (17th ed.) Citation

Larson, Ray R. Classification Clustering, Probabilistic Information Retrieval, and the Online Catalog. 1991.

MLA (9th ed.) Citation

Larson, Ray R. Classification Clustering, Probabilistic Information Retrieval, and the Online Catalog. 1991.

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