APA (7th ed.) Citation

Ragan, D. M. (1973). Structural geology: An introduction to geometrical techniques (2. ed.). Wiley.

Chicago Style (17th ed.) Citation

Ragan, Donal M. Structural Geology: An Introduction to Geometrical Techniques. 2. ed. New York u.a: Wiley, 1973.

MLA (9th ed.) Citation

Ragan, Donal M. Structural Geology: An Introduction to Geometrical Techniques. 2. ed. Wiley, 1973.