TY - BOOK AU - Punmia, B.C AU - Jain, Ashok Kumar. AU - Jain, Arun Kumar. TI - Waste water engineering (including air pollution) SN - 9788131805961 U1 - 628.2 22 PY - 1998/// CY - New Delhi PB - Laxmi Publications (p) Ltd. KW - Sewage disposal plants KW - Sewage disposal N1 - Includes index ER -