Dyfyniad APA

(1977). Drinking Water Quality Enhancement Trough Source Protection Edited By Robert B. Pojasek. Ann Arbor.

Dyfyniad Arddull Chicago

Drinking Water Quality Enhancement Trough Source Protection Edited By Robert B. Pojasek. Ann Arbor, 1977.

Dyfyniad MLA

Drinking Water Quality Enhancement Trough Source Protection Edited By Robert B. Pojasek. Ann Arbor, 1977.

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