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Potential economic benefits from the use of radioisotopes in flow measurements through high-head turbines and pumps | Bok | 62(05) F Forente stater. Department of the interior. Bureau of Reclamation / - Denver, Colo. : Bureau of Reclamation, 1969. - VIII, 25 s. (A water resources technical publication. Engineering m | Forente stater. Department of the interior | 1969 |