United States. Bureau of Reclamation. (1938). Boulder Canyon project: Final reports. the Bureau.
Citazione stile Chigago Style (17a edizione)United States. Bureau of Reclamation. Boulder Canyon Project: Final Reports. Denver, Colo.: the Bureau, 1938.
Citatione MLA (8a ed.)United States. Bureau of Reclamation. Boulder Canyon Project: Final Reports. the Bureau, 1938.
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