APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Robertson, D. W., Jr. The Literature of Medieval England. New York: McGraw-Hill, 1970.

MLA (9th ed.) Citation

Robertson, D. W., Jr. The Literature of Medieval England. McGraw-Hill, 1970.