APA-viite

Helgason, S. (2000). Differential geometry, lie groups and symmetric spaces. American mathematical society.

Chicago-tyylinen lähdeviittaus

Helgason, Sigurdur. Differential Geometry, Lie Groups and Symmetric Spaces. Providence: American mathematical society, 2000.

MLA-viite

Helgason, Sigurdur. Differential Geometry, Lie Groups and Symmetric Spaces. American mathematical society, 2000.