![PRESENT STATUS OF DISINFECTION OF WATER SUPPLIES [with DISCUSSION]]()
PRESENT STATUS OF DISINFECTION OF WATER SUPPLIES [with DISCUSSION]Francis F. Longley, C. A. Jennings, Wm. M. Jewell, M. B. Litch, W. M. Jewell, H. P. Letton, R. L. Sackett, John A. Kienle and D. P. Curry · Journal (American Water Works Association) · 1915