00470pamaa2200157 4500 0000029417 20060516090000.0 1856494365 333.9114 MCC 1996 TD195.D35 MCC 1996 MCCULLY Silenced rivers : the ecology and politics of large dams Patrick McCully. London: Zed Books, 1996. xvi, 350p.; 24cm. Dams -- Environmental aspects. dams -- Social aspects