Gaya APA

Clesceri, E, S. et al (1999). e-Book Standard Methods for the Examination of Water and Wastewater (Edition 20th) (20 Edition). : APHA, AWWA, dan WEF..

Gaya MLA

Clesceri, Enore, S.. et al. "e-Book Standard Methods for the Examination of Water and Wastewater (Edition 20th)". 20 Edition : APHA, AWWA, dan WEF., 1999. Electronic Resource.