Dyfyniad APA

Wentz, C. A. (1995). Hazardous waste management (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Wentz, Charles A. Hazardous Waste Management. 2nd ed. New York: McGraw-Hill, 1995.

Dyfyniad MLA

Wentz, Charles A. Hazardous Waste Management. 2nd ed. McGraw-Hill, 1995.

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