TY - BOOK AU - Singh,Gajraj TI - Handbook of water purity and quality SN - 9789380090238 (hbk.) PY - 2012/// CY - New Delhi PB - SBS Publishers & Distributors KW - Water KW - Pollution KW - Water quality management KW - Water quality KW - Measurement KW - Purification N1 - Includes index ER -