Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Ragan, Donal M. Structural Geology: An Introduction to Geometrical Techniques. 2nd ed. New York: John Wiley & Sons, 1973.

Cita MLA (9th ed.)

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