Dyfyniad APA

Ragan, D. M. (1985). Structural geology: An introduction to geometrical techniques. John Wiley.

Dyfyniad Arddull Chicago

Ragan, Donal M. Structural Geology: An Introduction to Geometrical Techniques. New York: John Wiley, 1985.

Dyfyniad MLA

Ragan, Donal M. Structural Geology: An Introduction to Geometrical Techniques. John Wiley, 1985.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.