Παραπομπή APA

Brooks, R., & Gray, A. R. (1983). Differntial geometry. Birkhauser.

Παραπομπή Chicago Style

Brooks, Robert, και Alfred Reinhart Gray. Differntial Geometry. Boston: Birkhauser, 1983.

Παραπομπή MLA

Brooks, Robert, και Alfred Reinhart Gray. Differntial Geometry. Birkhauser, 1983.