APA (7th ed.) Citation

Richards, Hull, & Proctor. (1994). Changes 1 student's cassette. Cambridge University Press.

Chicago Style (17th ed.) Citation

Richards, Hull, and Proctor. Changes 1 Student's Cassette. UK: Cambridge University Press, 1994.

MLA (8th ed.) Citation

Richards, et al. Changes 1 Student's Cassette. Cambridge University Press, 1994.