APA引文

Cunningham, W. P. (2006). Principles of enviromental science. New York: Margateth J. Kemp.

Chicago Style Citation

Cunningham, William P. Principles of Enviromental Science. New York: Margateth J. Kemp, 2006.

MLA引文

Cunningham, William P. Principles of Enviromental Science. New York: Margateth J. Kemp, 2006.

警告：這些引文格式不一定是100％准確.