Dyfyniad APA
Eckenfelder, W. W. (2000). Industrial water pollution control (3rd ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Eckenfelder, W. Wesley. Industrial Water Pollution Control. 3rd ed. Boston: McGraw-Hill, 2000.
Dyfyniad MLA
Eckenfelder, W. Wesley. Industrial Water Pollution Control. 3rd ed. McGraw-Hill, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.