Dyfyniad APA

Baird, C. (1999). Environmental chemistry. W.H. Freeman and Company.

Dyfyniad Arddull Chicago

Baird, Colin. Environmental Chemistry. New York: W.H. Freeman and Company, 1999.

Dyfyniad MLA

Baird, Colin. Environmental Chemistry. W.H. Freeman and Company, 1999.

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