Dyfyniad APA

Deming, D. (2002). Introduction to hydrogeology. McGraw-Hill.

Dyfyniad Arddull Chicago

Deming, David. Introduction to Hydrogeology. Boston, Mass: McGraw-Hill, 2002.

Dyfyniad MLA

Deming, David. Introduction to Hydrogeology. McGraw-Hill, 2002.

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