000 00314nam a2200121Ia 4500
001 23833
008 170722s9999 xx 000 0 und d
100 _aSastri, Mn
245 _aintroduction to environment /
260 _aBombay :
_bHimalaya Publishing House ,
_c1993.
300 _a134 p.
_c21.5cms
942 _cGEN
999 _c113599
_d113599