Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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