Dyfyniad APA

Eckenfelder, W. W. (1970). Water quality engineering for practicing engineers. Barnes & Noble.

Dyfyniad Arddull Chicago

Eckenfelder, W. Wesley. Water Quality Engineering for Practicing Engineers. New York: Barnes & Noble, 1970.

Dyfyniad MLA

Eckenfelder, W. Wesley. Water Quality Engineering for Practicing Engineers. Barnes & Noble, 1970.

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