APA-referens

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

Chicago-stil citat

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

MLA-referens

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