APA استشهاد

Grass, G., & Heim, M. H. (1999). My century. Harcourt Inc.

استشهاد بنمط شيكاغو

Grass, Gunter, و Michael Henry Heim. My Century. New York: Harcourt Inc, 1999.

MLA استشهاد

Grass, Gunter, و Michael Henry Heim. My Century. Harcourt Inc, 1999.