00317nam a2200121Ia 4500008004100000020001800041040003800059100002000097245002700117250000800144260003100152300001200183211230s9999    xx            000 0 und d  a0 393 09407 3  cJayakar Knowledge Resource Centre  aHunt, Cynthia A 0aWater: the web of life  a1st  bW W NortonaNew Yorkc1972  a208p p.