APA引文

Ehrlich, A. H., & Ehrlich, P. R. (1987). Earth. Thames Methuen.

Chicago Style (17th ed.) Citation

Ehrlich, Anne H., and Paul R. Ehrlich. Earth. London: Thames Methuen, 1987.

MLA引文

Ehrlich, Anne H., and Paul R. Ehrlich. Earth. Thames Methuen, 1987.

警告：這些引文格式不一定是100％准確.