000			00325nam a22001337a 4500
999			_c3891 _d3891
008			170412b xxu||||| |||| 00| 0 eng d
020			_a8176489093
082			_a371.102
100			_aSingh, Y.K.
245			_aTeaching of environmental science
260			_aNew Delhi _bAPH Pub. _c2005
300			_a366p. :
942			_2ddc _cBK