Cita APA (7a ed.)

Maison, K. E., & Ayrton, M. (1960). Themes and Variations. Thames and Hudson.

Cita Chicago Style (17a ed.)

Maison, K. E., y Michael Ayrton. Themes and Variations. London: Thames and Hudson, 1960.

Cita MLA (8a ed.)

Maison, K. E., y Michael Ayrton. Themes and Variations. Thames and Hudson, 1960.