APA-viite

Malthus, T. R. (1973). Essay on the Principle of Population. Dent.

Chicago-tyylinen lähdeviittaus

Malthus, T R. Essay on the Principle of Population. London: Dent, 1973.

MLA-viite

Malthus, T R. Essay on the Principle of Population. Dent, 1973.