APA引文

Malthus, T., & Huxley, J. O. (1959). On Populatioon: Three Essays.

Chicago Edition Citation

Malthus, Thomas, and Julian Ozborn Huxley. On Populatioon: Three Essays. Calcutta, 1959.

MLA引文

Malthus, Thomas, and Julian Ozborn Huxley. On Populatioon: Three Essays. 1959.

警告：這些引文格式不一定是100％准確.