APA (7th ed.) Citation

Symposium on the Biology of the Koala, Handasyde, K. A., Sanson, G. D., & Lee, A. K. (1991). Biology of the koala. Surrey Beatty & Sons.

Chicago Style (17th ed.) Citation

Symposium on the Biology of the Koala, K. A. Handasyde, G. D. Sanson, and Anthony K. Lee. Biology of the Koala. Chipping Norton, N.S.W.: Surrey Beatty & Sons, 1991.

MLA (9th ed.) Citation

Symposium on the Biology of the Koala, et al. Biology of the Koala. Surrey Beatty & Sons, 1991.