Dyfyniad APA

United States. Environmental Protection Agency & Oil and Special Materials Control Division. (1977). Oil spills and spills of hazardous substances (3rd ed.). Oil and Special Materials Control Division, Office of Water Program Operations, U.S. Environmental Protection Agency.

Dyfyniad Arddull Chicago

United States. Environmental Protection Agency and Oil and Special Materials Control Division. Oil Spills and Spills of Hazardous Substances. 3rd ed. Washington: Oil and Special Materials Control Division, Office of Water Program Operations, U.S. Environmental Protection Agency, 1977.

Dyfyniad MLA

United States. Environmental Protection Agency and Oil and Special Materials Control Division. Oil Spills and Spills of Hazardous Substances. 3rd ed. Oil and Special Materials Control Division, Office of Water Program Operations, U.S. Environmental Protection Agency, 1977.

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