Cepede, M. (1964). Population and food. Sheed and Ward.
Cita Chicago Style (17a ed.)Cepede, Michel. Population and Food. New York: Sheed and Ward, 1964.
Cita MLA (9a ed.)Cepede, Michel. Population and Food. Sheed and Ward, 1964.
Precaución: Estas citas no son 100% exactas.