Dyfyniad APA

McBirney, A. R. (1994). Igneous petrology (2nd ed.). CBS Publishers.

Dyfyniad Arddull Chicago

McBirney, Alexander R. Igneous Petrology. 2nd ed. New Delhi: CBS Publishers, 1994.

Dyfyniad MLA

McBirney, Alexander R. Igneous Petrology. 2nd ed. CBS Publishers, 1994.

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