Ensor, G. (1967). An inquiry concerning the population of nations: Containing a refutation or Mr. Malthus's essay on population. Kelley.
Chicago-Zitierstil (17. Ausg.)Ensor, George. An Inquiry Concerning the Population of Nations: Containing a Refutation or Mr. Malthus's Essay on Population. New York: Kelley, 1967.
MLA-Zitierstil (9. Ausg.)Ensor, George. An Inquiry Concerning the Population of Nations: Containing a Refutation or Mr. Malthus's Essay on Population. Kelley, 1967.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.