00423nam a22001337a 450000500170000000800410001702000180005804000160007604100080009205000220010024501240012226000330024630000100027920150730063905.0150730b xxu||||| |||| 00| 0 eng d a92-3-101685-7 aKYUCLcKYUC aENG aGB 651b:D38 1979 aHydrological problems arising from the development of energybA preliminary reportcDavis H. George and Velikanov A. L. aParis, FrancebUNESCO/c1979 a32 P.