01200nam0-2200385---45--99000058830020331620010208000000.00-471-96062-40058830USA010058830(ALEPH)000058830USA01005883020010209d2000----km-y1itay0103----baengGBa|||||||001yyGlobal perspectives on river conservationscience, policy and practiceedited by P. J.Boon, B. R. Davies and G. E. PettsChichester [etc.]John Wiley & sonsc2000XVI,548 p.ill.26 cmFiumiProtezione333.916216BOON,P. J.PETTS,Geoffrey E.DAVIES,.Bryan R.ITUNPD20010208RICA990000588300203316333.916 216 GLO29446/G.33300073904BKTECJOHNNY9020010820USA011114JOHNNY9020010820USA01112720020403USA011708PATRY9020040406USA011641Global perspectives on river conservation882969UNISA