APA-referens (7:e uppl.)
Barker, G. (2009). The agricultural revolution in prehistory: Why did foragers become farmers? Oxford University Press.
Chicago-referens (17:e uppl.)
Barker, Graeme. The Agricultural Revolution in Prehistory: Why Did Foragers Become Farmers? Oxford: Oxford University Press, 2009.
MLA-referens (9:e uppl.)
Barker, Graeme. The Agricultural Revolution in Prehistory: Why Did Foragers Become Farmers? Oxford University Press, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.