000 00277nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _a"Varshney, C.K."
245 0 _aEnvironmental challanges
260 _bWiley-Eastern
260 _c1993
365 _b350.00
942 _cBK
999 _c138494
_d138494