Não informado. (2003). Differential Geometry and its Applications. North-Holland.
Chicago-referens (17:e uppl.)Não informado. Differential Geometry and Its Applications. Amsterdam: North-Holland, 2003.
MLA-referens (8:e uppl.)Não informado. Differential Geometry and Its Applications. North-Holland, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.