000 00299nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aBiswas (Asit K)
245 0 _aSystems approach to water managemnt
260 _b"ISE, McGraw Hll Kogakusha"
260 _c1976
365 _b7.95
942 _cBK
999 _c203724
_d203724