APA (7th ed.) Citation

Mathers, D., Farmer, A., & Green, R. (1992). Ears. Troll Associates.

Chicago Style (17th ed.) Citation

Mathers, Douglas, Andrew Farmer, and Robina Green. Ears. [Mahwah, N.J.]: Troll Associates, 1992.

MLA (9th ed.) Citation

Mathers, Douglas, et al. Ears. Troll Associates, 1992.