Παραπομπή APA

Weeks, J. R. (1985). The shape of space: How to visualize surfaces and three-dimensional manifolds. M. Dekker.

Παραπομπή Chicago Style

Weeks, Jeffrey R. The Shape of Space: How to Visualize Surfaces and Three-dimensional Manifolds. New York: M. Dekker, 1985.

Παραπομπή MLA

Weeks, Jeffrey R. The Shape of Space: How to Visualize Surfaces and Three-dimensional Manifolds. M. Dekker, 1985.