Gaya APA

Mayer, H, E. (1972). The Crusades, transl. by John Cillingham. : Geschichte der Kreuzzüge. 1965. . (London): Oxford University Press.

Gaya MLA

Mayer, Hans, Eberhard.. "The Crusades, transl. by John Cillingham. : Geschichte der Kreuzzüge. 1965. ". (London): Oxford University Press, 1972. Buku.