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Session: Optimum operation and development of predominantly hydro power systems, Thursday, May 21, 1970 | Bok | 621.311(061.3) N NOR-power '70. International Power System Fair and Symposium (1970 : Oslo) / - Oslo : Konferansen, 1970. - 1 b. (flere pag.) - Språk: Engelsk | NOR-power '70. International Power System Fair and Symposium | 1970 |