Dyfyniad APA

Alexandrice, V. (2011). GLOSSARY of Geology. American Geosciences Institute.

Dyfyniad Arddull Chicago

Alexandrice, Virgina. GLOSSARY of Geology. American Geosciences Institute, 2011.

Dyfyniad MLA

Alexandrice, Virgina. GLOSSARY of Geology. American Geosciences Institute, 2011.

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