APA استشهاد

Drew, K. F. (1970). Barbarian invasions: Catalyst of a new order. Holr, Rinehart and Winston.

استشهاد بنمط شيكاغو

Drew, Katherine Fisher. Barbarian Invasions: Catalyst of a New Order. New York: Holr, Rinehart and Winston, 1970.

MLA استشهاد

Drew, Katherine Fisher. Barbarian Invasions: Catalyst of a New Order. Holr, Rinehart and Winston, 1970.