000 00323nam a2200121Ia 4500
008 220303s9999 xx 000 0 und d
041 _aeng
082 _a574.5 AST / TEX
100 _aAsthana, D.K.
_9116404
245 _aA textbook on Environmental Studies
250 _a1st Edition
260 _aNew Delhi
_bS. Chand & Co
999 _c124701
_d124701