Cita APA (7a ed.)

Malthus, T. (1959). Population: The first essay. Univ. Press.

Cita Chicago Style (17a ed.)

Malthus, Thomas. Population: The First Essay. Michigan: Univ. Press, 1959.

Cita MLA (9a ed.)

Malthus, Thomas. Population: The First Essay. Univ. Press, 1959.