Citazione Stile APA (7a Edizione)

Ragan, D. M. (2009). Structural geology: an introduction to: Geometrical techniques. Upr.

Citazione stile Chigago Style (17a edizione)

Ragan, Donal M. Structural Geology: An Introduction to: Geometrical Techniques. Cambridge: Upr, 2009.

Citatione MLA (9a ed.)

Ragan, Donal M. Structural Geology: An Introduction to: Geometrical Techniques. Upr, 2009.