Chicago: Thomas Robert Malthus, "An Essay on the Principle of Population," An Essay on the Principle of Population, trans. D’Anvers, N. (Nancy Bell), D. 1933 in An Essay on the Principle of Population Original Sources, accessed May 1, 2025, http://www.originalsources.com/Document.aspx?DocID=D6KRMAI6V83LD1X.
MLA: Malthus, Thomas Robert. "An Essay on the Principle of Population." An Essay on the Principle of Population, translted by D’Anvers, N. (Nancy Bell), D. 1933, in An Essay on the Principle of Population, Original Sources. 1 May. 2025. http://www.originalsources.com/Document.aspx?DocID=D6KRMAI6V83LD1X.
Harvard: Malthus, TR, 'An Essay on the Principle of Population' in An Essay on the Principle of Population, trans. . cited in , An Essay on the Principle of Population. Original Sources, retrieved 1 May 2025, from http://www.originalsources.com/Document.aspx?DocID=D6KRMAI6V83LD1X.