APA (7th ed.) Citation

Richard, Hull, & Proctor. (1994). Changes 1 class cassette set cassette A and B. Cambridge University Press.

Chicago Style (17th ed.) Citation

Richard, Hull, and Proctor. Changes 1 Class Cassette Set Cassette A and B. UK: Cambridge University Press, 1994.

MLA (8th ed.) Citation

Richard, et al. Changes 1 Class Cassette Set Cassette A and B. Cambridge University Press, 1994.