Dyfyniad APA

Raymond, L. A. (2002). Petrology: The study of igneous,sedimentary and metamorphic rocks. Mc Graw hill.

Dyfyniad Arddull Chicago

Raymond, Loren A. Petrology: The Study of Igneous,sedimentary and Metamorphic Rocks. Boston: Mc Graw hill, 2002.

Dyfyniad MLA

Raymond, Loren A. Petrology: The Study of Igneous,sedimentary and Metamorphic Rocks. Mc Graw hill, 2002.

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