Dyfyniad APA

Brian M. Bayly. (1968). Introduction to petrology. Prentice-Hall.

Dyfyniad Arddull Chicago

Brian M. Bayly. Introduction to Petrology. Englewood Cliffs, New Jersey: Prentice-Hall, 1968.

Dyfyniad MLA

Brian M. Bayly. Introduction to Petrology. Prentice-Hall, 1968.

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