Cita APA (7th ed.)

Helgason, S. (2012). Differential geometry, Lie groups, and symmetric spaces (3a. ed.). American Mathematical Society.

Cita Chicago (17th ed.)

Helgason, Sigurdur. Differential Geometry, Lie Groups, and Symmetric Spaces. 3a. ed. Providence: American Mathematical Society, 2012.

Cita MLA (9th ed.)

Helgason, Sigurdur. Differential Geometry, Lie Groups, and Symmetric Spaces. 3a. ed. American Mathematical Society, 2012.