00519nam a22001577a 4500008004100000040005500041080002600096245008400122260005400206650001200260653001400272700002300286700002200309942001300331999001700344221103b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aR 502.4/.6+628.5(031)  aEncyclopaedia of environmental sciences: bEnvironmental agricultural pollution  aNew Delhi:   bAkashdeep Publishing House, c1992  aScience  aChemistry  aTrivedi, R P (Ed.)  aRaj Gurdeep (Ed.)  2udccENC  c27731d27731