APA (7th ed.) Zitazioa

Barker, G. (1985). Prehistoric farming in Europe. C.U.Pr..

Chicago Style (17th ed.) Zitazioa

Barker, Graeme. Prehistoric Farming in Europe. Cambridge: C.U.Pr., 1985.

MLA (9th ed.) Zitazioa

Barker, Graeme. Prehistoric Farming in Europe. C.U.Pr., 1985.