APA (7th ed.) Citation

Townley, H. M. (1978). Systems analysis for information retrieval. Deutsch.

Chicago Style (17th ed.) Citation

Townley, Helen M. Systems Analysis for Information Retrieval. London: Deutsch, 1978.

MLA (9th ed.) Citation

Townley, Helen M. Systems Analysis for Information Retrieval. Deutsch, 1978.

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