APA (7th ed.) Citation

Harper, D. J. V. R. (1978). An Evaluation of Feedback in Document Retrieval Using Co-Occurrence Data.

Chicago Style (17th ed.) Citation

Harper, D. J.: Van Rijsbergen. An Evaluation of Feedback in Document Retrieval Using Co-Occurrence Data. 1978.

MLA (9th ed.) Citation

Harper, D. J.: Van Rijsbergen. An Evaluation of Feedback in Document Retrieval Using Co-Occurrence Data. 1978.

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