000 00276nam a2200109Ia 4500
008 180821s9999 xx 000 0 und d
100 _aAnjaneyulu, Y
250 _a1st
942 _cBK
245 _aIntroduction to environmental science
260 _aHyderabad
_bBS Publications
_c2007
700 _aRao, P N
999 _c384763
_d384763