TY - BOOK AU - Swarup,R. AU - Mishra,S.N. AU - Jauhari,V.P. TI - Encyclopaedia of ecology, environment & pollution control 17 Environmental air and water analysis SN - 8170993776 U1 - 304.203 22 PY - 1992/// CY - New Delhi PB - Mittal Publications KW - Environmental policy-Social aspects ER -