APA (7th ed.) Citation

Willmore, T. (2012). An introduction to differential geometry (Dover ed.). Dover Publications.

Chicago Style (17th ed.) Citation

Willmore, T. An Introduction to Differential Geometry. Dover ed. Mineola, N.Y.: Dover Publications, 2012.

MLA (9th ed.) Citation

Willmore, T. An Introduction to Differential Geometry. Dover ed. Dover Publications, 2012.