Doubleday, T. (1967). The True law of population shown as connected with the food of the people. A.M. Kelly.
Citação do estilo Chicago (17ª ed.)Doubleday, Thomas. The True Law of Population Shown as Connected with the Food of the People. New York: A.M. Kelly, 1967.
Citação MLA (9ª ed.)Doubleday, Thomas. The True Law of Population Shown as Connected with the Food of the People. A.M. Kelly, 1967.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.