APA (7th ed.) Citation

Maley, A., & Duff, A. (1978). Variations on a theme (1. publ.). Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Maley, Alan, and Alan Duff. Variations on a Theme. 1. publ. Cambridge [u.a.]: Cambridge Univ. Press, 1978.

MLA (9th ed.) Citation

Maley, Alan, and Alan Duff. Variations on a Theme. 1. publ. Cambridge Univ. Press, 1978.