Bar, C. (2010). Elementary differential geometry (First South Asian edition 2011.). Cambridge University Press.
Chicago-referens (17:e uppl.)Bar, Christian. Elementary Differential Geometry. First South Asian edition 2011. New York: Cambridge University Press, 2010.
MLA-referens (8:e uppl.)Bar, Christian. Elementary Differential Geometry. First South Asian edition 2011. Cambridge University Press, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.