Citazione Stile APA (7a Edizione)

Mowat, R. B., & Kelly, T. (1972). The Middle Ages (Second course, Rev., reprinted.). Chambers.

Citazione stile Chigago Style (17a edizione)

Mowat, Robert Balmain, e Thomas Kelly. The Middle Ages. Second course, Rev., reprinted. Edinburgh London: Chambers, 1972.

Citatione MLA (9a ed.)

Mowat, Robert Balmain, e Thomas Kelly. The Middle Ages. Second course, Rev., reprinted. Chambers, 1972.