APA

Wilks M., . (1963). The problem of sovereignty in the later Middle Ages. Cambridge [Eng.]: University Press.

Chicago

Wilks Michael, . 1963. The problem of sovereignty in the later Middle Ages. Cambridge [Eng.]: University Press.

Harvard

Wilks M., . (1963). The problem of sovereignty in the later Middle Ages. Cambridge [Eng.]: University Press.

MLA

Wilks Michael, . The problem of sovereignty in the later Middle Ages. Cambridge [Eng.]: University Press. 1963.