Παραπομπή APA

Bishop, R. L., & Crittenden, R. J. (1964). Geometry of manifolds.

Παραπομπή Chicago Style

Bishop, Richard L., και Richard J. Crittenden. Geometry of Manifolds. 1964.

Παραπομπή MLA

Bishop, Richard L., και Richard J. Crittenden. Geometry of Manifolds. 1964.