000 00272nam a22001097a 4500
008 140102b xxu||||| |||| 00| 0 eng d
020 _a8176485314
050 _a333.72
100 _aTrivedi P R
245 _aNatural resources conservation
260 _aNew Delhi
_bAPH
_c2004
999 _c329053
_d329053