000 00438nam a2200181Ia 4500
008 210723s9999||||xx |||||||||||||| ||und||
020 _aNULL
035 _a38589
082 _a581.5
_BVER / AGA
100 _aVerma, P. S. / Agarwal, V. K.
245 0 _aEnvironmental Biology : Principles Of Ecology
250 _a-
260 _aN. Delhi
_bS. Chand and Company Ltd.
300 _aNULL
500 _a0
650 _a-
942 _cBK
999 _c40290
_d40290