APA (7th ed.) Citation

Salton, G., & Waldstein, R. K. (1977). Term relevance weights in on-line information retrieval.

Chicago Style (17th ed.) Citation

Salton, Gerard, and R. K. Waldstein. Term Relevance Weights in On-line Information Retrieval. Ithaca, New York, 1977.

MLA (9th ed.) Citation

Salton, Gerard, and R. K. Waldstein. Term Relevance Weights in On-line Information Retrieval. 1977.