000 00323nam a2200109Ia 45e0
008 181001s1977 xx 000 0 und d
100 _aHeimos
245 0 _aHierarchical analysis of water resources
260 _bMcGraw Hill com.
_c1977
300 _a478
942 _2ddc
_cBK
999 _c3473
_d3473