Παραπομπή APA

Gottschalk, W. H., & Hedlund, G. A. (1974). Topological dynamics. American Mathematical Society.

Παραπομπή Chicago Style

Gottschalk, Walter H., και Gustav Arnold Hedlund. Topological Dynamics. Rhode Island: American Mathematical Society, 1974.

Παραπομπή MLA

Gottschalk, Walter H., και Gustav Arnold Hedlund. Topological Dynamics. American Mathematical Society, 1974.