00603nam a2200193 a 450000500170000002000150001708200180003210000130005024500390006326000340010230000190013649000650015563000310022063000280025196400300027999700120030999900170032195200710033820251203092042.0  a8185431922  a363.7394bGAU  aGaur, G.  aWater pollution and its management  aNew DelhibSarup & Sonsc1997  a376 p.c23 cm.  aInternational encyclopaedia of environmental pollution...d2  aWater pollution-management  aWater pollution-Control  bENGLISHcd363eBOOKfg_  a88869 C  c62210d62210  00104070aPUbPUd1998-12-09g550.00l0o363.7394 GAUp88869yBK