Koenig, M. (1975). Bowker AV guide: A subject guide to audio-visual educational material. Bowker.
芝加哥风格引文Koenig, Marion. Bowker AV Guide: A Subject Guide to Audio-visual Educational Material. London ; New York: Bowker, 1975.
MLA引文Koenig, Marion. Bowker AV Guide: A Subject Guide to Audio-visual Educational Material. Bowker, 1975.
警告：这些引文格式不一定是100％准确.