To cite a cassette recording, a typical bibliography entry will appear as follows:

McFerrin, Bobby (Vocalist). (1990). Medicine music [Cassette

      Recording]. Hollywood, CA: EMI-USA.

The name of the speaker, singer or significant contributors are listed at the head of the entry, last names first. Each name is followed by a description in parentheses of that individual's function (in this example, McFerrin is the vocalist), and a period should appear after the final parenthesis. After listing the date in parentheses followed by a period, italicize the title, and specify in brackets the type of recording (cassette, compact disc, etc.). If a number is necessary to identify the recording, use parentheses rather than brackets and list the number like this: (Cassette Recording No. 8745). Conclude the entry with the place of production, and the distributor's name.

For more specific information, consult the Publication Manual of the American Psychological Association (Fifth Edition).