Style de citation APA (7e éd.)

Hermann, R. (1977). Differential geometry and the calculus of variations (2nd edition.). Math Sci Press.

Style de citation Chicago (17e éd.)

Hermann, Robert. Differential Geometry and the Calculus of Variations. 2nd edition. Brookline, Ma.: Math Sci Press, 1977.

Style de citation MLA (8e éd.)

Hermann, Robert. Differential Geometry and the Calculus of Variations. 2nd edition. Math Sci Press, 1977.