APA引文

Malthus, T. R. (1966). First essays on population. MacMillion.

Chicago Edition Citation

Malthus, Thomas Robert. First Essays on Population. New York: MacMillion, 1966.

MLA引文

Malthus, Thomas Robert. First Essays on Population. MacMillion, 1966.

警告：這些引文格式不一定是100％准確.