Παραπομπή APA

Hammer, M. J. (2004). Water and waste water technology (5.).

Παραπομπή Chicago Style

Hammer, Mark J. Water and Waste Water Technology. 5. Prentice - Hall of India Pvt. Ltd., New Delhi, 2004.

Παραπομπή MLA

Hammer, Mark J. Water and Waste Water Technology. 5. 2004.