APA-viite

Malthus, T. R. (1994). Population: Contemporary response to Thomas Malthus.

Chicago-tyylinen lähdeviittaus

Malthus, T R. Population: Contemporary Response to Thomas Malthus. England, Thoemmes Press, 1994.

MLA-viite

Malthus, T R. Population: Contemporary Response to Thomas Malthus. 1994.