000 00323nam a2200145Ia 4500
005 20250215020007.0
020 _a8121927641
082 _a303.707 AST
100 _aASTHANA, D.K.
245 _aTEXTBOOK OF ENVIRONMENTAL STUDIES
260 _bS CHAND
_c2014
300 _a397
650 _aENVIRONMENT
942 _2ddc
_cB
_01
999 _c68310
_d68310