American Public Health Association, United States. Environmental Protection Agency, American Water Works Association, Water Pollution Control Federation, & American Public Health Association. (1981). Supplement to the fifteenth edition of Standard methods for the examination of water and wastewater: Selected analytical methods approved and cited by the United States Environmental Protection Agency. APHA-AWWA-WPCF.
Chicago Style (17th ed.) CitationAmerican Public Health Association, United States. Environmental Protection Agency, American Water Works Association, Water Pollution Control Federation, and American Public Health Association. Supplement to the Fifteenth Edition of Standard Methods for the Examination of Water and Wastewater: Selected Analytical Methods Approved and Cited by the United States Environmental Protection Agency. [Washington, D.C.]: APHA-AWWA-WPCF, 1981.
MLA (8th ed.) CitationAmerican Public Health Association, et al. Supplement to the Fifteenth Edition of Standard Methods for the Examination of Water and Wastewater: Selected Analytical Methods Approved and Cited by the United States Environmental Protection Agency. APHA-AWWA-WPCF, 1981.