Dyfyniad APA

Bucher, K., & Grapes, R. (2011). Petrogenesis of metamorphic rocks (8th ed.). Springer.

Dyfyniad Arddull Chicago

Bucher, Kurt, and Rodney Grapes. Petrogenesis of Metamorphic Rocks. 8th ed. New York: Springer, 2011.

Dyfyniad MLA

Bucher, Kurt, and Rodney Grapes. Petrogenesis of Metamorphic Rocks. 8th ed. Springer, 2011.

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