Citazione Stile APA (7a Edizione)

Robertson, D. W. (1970). The literature of medieval England. McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Robertson, Durant Waite. The Literature of Medieval England. New York: McGraw-Hill, 1970.

Citatione MLA (9a ed.)

Robertson, Durant Waite. The Literature of Medieval England. McGraw-Hill, 1970.