APA (7th ed.) Citation

Koenig, M. (1975). Bowker AV guide: A subject guide to audio-visual educational material. Bowker.

Chicago Style (17th ed.) Citation

Koenig, Marion. Bowker AV Guide: A Subject Guide to Audio-visual Educational Material. London: Bowker, 1975.

MLA (9th ed.) Citation

Koenig, Marion. Bowker AV Guide: A Subject Guide to Audio-visual Educational Material. Bowker, 1975.