Cita APA (7th ed.)

Spivak, M. (1979). A comprehensive introduction to differential geometry (2nd edition.). Publish or Perish.

Cita Chicago (17th ed.)

Spivak, Michael. A Comprehensive Introduction to Differential Geometry. 2nd edition. Houston (Tex.): Publish or Perish, 1979.

Cita MLA (8th ed.)

Spivak, Michael. A Comprehensive Introduction to Differential Geometry. 2nd edition. Publish or Perish, 1979.