APA استشهاد

Grass, G., & Manheim, R. (1992). call of the toad. Vintage.

استشهاد بنمط شيكاغو

Grass, Gunter, و Ralph Manheim. Call of the Toad. London: Vintage, 1992.

MLA استشهاد

Grass, Gunter, و Ralph Manheim. Call of the Toad. Vintage, 1992.