Cita APA (7th ed.)
Malthus, T. R. (2001). An Investigation into the high price of provisions. Electric Book Co..
Cita Chicago (17th ed.)
Malthus, T. R. An Investigation into the High Price of Provisions. London: Electric Book Co., 2001.
Cita MLA (9th ed.)
Malthus, T. R. An Investigation into the High Price of Provisions. Electric Book Co., 2001.
Atenció: Aquestes cites poden no estar 100% correctes.