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Estados Unidos Geological Survey. (1908). Details of sluicing gates of Roosevelt dam, Salt river project, Arizona. U. S. Geological Survey.
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Estados Unidos Geological Survey. Details of Sluicing Gates of Roosevelt Dam, Salt River Project, Arizona. U. S. Geological Survey, 1908.
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Estados Unidos Geological Survey. Details of Sluicing Gates of Roosevelt Dam, Salt River Project, Arizona. U. S. Geological Survey, 1908.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.