APA (7th ed.) Citation

Wombat Productions, Janson Media, Feldman, G., Winter, S., & Matthau, W. (2010). Walter Matthau: Diamond in the rough. Janson Media.

Chicago Style (17th ed.) Citation

Wombat Productions, Janson Media, Gene Feldman, Suzette Winter, and Walter Matthau. Walter Matthau: Diamond in the Rough. [United States]: Janson Media, 2010.

MLA (9th ed.) Citation

Wombat Productions, et al. Walter Matthau: Diamond in the Rough. Janson Media, 2010.