Παραπομπή APA

Hobbs, B. E. (1976). Outline of structural geology. Wiley.

Παραπομπή Chicago Style

Hobbs, Bruce E. Outline of Structural Geology. New York: Wiley, 1976.

Παραπομπή MLA

Hobbs, Bruce E. Outline of Structural Geology. Wiley, 1976.