Theory and practice of water and wastewater treatment by Droste, Ronald L., Gehr, Ronald L.

Available for University of the Philippines Diliman College of Engineering via e-Textbook Reserves under Vital Source. Click here to access
Also available remotely for University of the Philippines Diliman College of Engineering. Click here to access thru Remote Access via EZProxy

Theory and practice of water and wastewater treatment by Droste, Ronald L.

Water supply and sanitation in developing countries