00405nam a22001337a 4500008004100000020001500041040005500056080002200111245004200133260004400175300001000219650001200229700003000241230614b        |||||||| |||| 00| 0 eng d  a8170412986  aNational Science LibrarycNational Science Library  aR 54:574(038)bN0  aDictionary of environmental chemistry  aNew Delhi: bAnmol Publications, c1990  a294p.  aScience  aChhatwal, Gurdeep R (Ed.)