00298nam a2200109Ia 450000500170000000800410001708200160005810000180007424500440009226000440013630000080018020260224040955.0260224s9999||||xx |||||||||||||| ||und||  a363.739 AGA  aAgarwal S. K. 0aPollution Management:  water pollution.  aNew Delhi: A.P.H. Publishers Corpc2002  a384