000			00312nam a22001097a 4500
008			140102b xxu||||| |||| 00| 0 eng d
020			_a8171692796
050			_a333.72
100			_aTrivedi P R
245			_aEnvironment & natural resources conservation _c K N Sudarshan
260			_bCommon Wealth publishers _c1994
999			_c329108 _d329108