00390nam a2200133 a 450000500170000000800410001704100080005808200120006610000180007824500580009626400480015430000270020265000270022920260717091542.0260717s1994    ii            000 0 eng d  aeng04a628.1681 aJadhav, H. V.10aPrinciples of environmental sciences /cJadhav, H. V. 1aBombay :bHimalaya Publishing House,c1994.  a101 p. : ill. ; 22 cm. 4aEnvironmental sciences