00338pab a2200121 454500008004000000100002600040245006600066260000900132300001100141362001200152650002000164773003200184180718b1997   xxu||||| |||| 00| 0 eng d  aAbernethy, Charles L.  aWater management in the 21st century: problems and challenges  c1997  ap.8-13  aMar-Apr  aWater resources  aDevelopment and Cooperation