Cita APA (7a ed.)

Malthus, T. R. (2001). An essay on the principle of population. Electric Book Co..

Cita Chicago Style (17a ed.)

Malthus, T. R. An Essay on the Principle of Population. London: Electric Book Co., 2001.

Cita MLA (8a ed.)

Malthus, T. R. An Essay on the Principle of Population. Electric Book Co., 2001.