000 00503nam a22001817a 4500
003 OSt
005 20211118112458.0
008 121017b xxu||||| |||| 00| 0 eng d
020 _a8174885447
040 _cKrishna
082 _a372.357 TRI
100 _aTrivedi, R. N.
245 _aA textbook of environmental sciences /
_cR. N. Trivedi.
260 _aNew delhi :
_bAnmol publications,
_c1997.
300 _axi, 472 p. :
_bill. ;
_c22 cm.
650 _aEnviornmental sciences.
942 _2ddc
_cBK
999 _c2572
_d2572