Dyfyniad APA

Twort, A., & Law, F. C. F. (1985). Water Supply (3rd.).

Dyfyniad Arddull Chicago

Twort, A.C, and F.M. Crowley. F.W Law. Water Supply. 3rd. New Delhi, 1985.

Dyfyniad MLA

Twort, A.C, and F.M. Crowley. F.W Law. Water Supply. 3rd. 1985.

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