Cita APA (7th ed.)

O'Neill, B. (2006). Elementary Differential Geometry (2a. ed.). Elsevier.

Cita Chicago (17th ed.)

O'Neill, Barrett. Elementary Differential Geometry. 2a. ed. Amsterdam: Elsevier, 2006.

Cita MLA (9th ed.)

O'Neill, Barrett. Elementary Differential Geometry. 2a. ed. Elsevier, 2006.