APA استشهاد

Kreyszig, E. (1975). Introduction to differential geometry and Riemannian geometry. University of Toronto Press.

استشهاد بنمط شيكاغو

Kreyszig, Erwin. Introduction to Differential Geometry and Riemannian Geometry. [Toronto]: University of Toronto Press, 1975.

MLA استشهاد

Kreyszig, Erwin. Introduction to Differential Geometry and Riemannian Geometry. University of Toronto Press, 1975.