Dyfyniad APA

Morgan, M. T. (2003). Environmental health (3rd ed.). Thomson/Wadsworth.

Dyfyniad Arddull Chicago

Morgan, Monroe T. Environmental Health. 3rd ed. Australia: Thomson/Wadsworth, 2003.

Dyfyniad MLA

Morgan, Monroe T. Environmental Health. 3rd ed. Thomson/Wadsworth, 2003.

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