Dyfyniad APA

Benefield, L. D. R. (1980). Biological process design for waste water treatment.

Dyfyniad Arddull Chicago

Benefield, Larry D; Randall. Biological Process Design for Waste Water Treatment. Prentice - Hall of India, Pvt. ltd., New Delhi, 1980.

Dyfyniad MLA

Benefield, Larry D; Randall. Biological Process Design for Waste Water Treatment. 1980.

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