APA استشهاد

Petersen, P. (2006). Riemannian geometry (2nd.). Springer.

استشهاد بنمط شيكاغو

Petersen, Peter. Riemannian Geometry. 2nd. New York: Springer, 2006.

MLA استشهاد

Petersen, Peter. Riemannian Geometry. 2nd. Springer, 2006.