000 00314nam a2200121Ia 4500
008 220303s2014 xx 000 0 und d
041 _aeng
082 _a574.5 SHA/Eco
100 _aSharma, P D
_9112699
245 _aEcology and Environment
250 _a12th Ed.
260 _aMeerut
_bRastogi Publications
_c2014
999 _c120991
_d120991