APA (7th ed.) Citation

Richard, Hull, & Proctor. (1995). Changes 3 student cassette. Cambridge University Press.

Chicago Style (17th ed.) Citation

Richard, Hull, and Proctor. Changes 3 Student Cassette. UK: Cambridge University Press, 1995.

MLA (8th ed.) Citation

Richard, et al. Changes 3 Student Cassette. Cambridge University Press, 1995.