Cita APA (7th ed.)
McCann, J. (2005). Maize and grace: Africa's encounter with a New World crop, 1500-2000. Harvard University Press.
Cita Chicago (17th ed.)
McCann, James. Maize and Grace: Africa's Encounter with a New World Crop, 1500-2000. Cambridge, MA: Harvard University Press, 2005.
Cita MLA (9th ed.)
McCann, James. Maize and Grace: Africa's Encounter with a New World Crop, 1500-2000. Harvard University Press, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.