United States Department of the Interior Bureau of Reclamation. United States Department of the Interior, Bureau of Reclamation. United States Department of the Interior Bureau of Reclamation Manual. United States Department of the Interior bureau of mines ; United States Department of the Interior Office of Education. United States Department of the Tnterior Office of Education. United States Department of the Interior, Bureau of Mines ; U. S. Department of the Interior. Bureau of Reclamation. U. S. Department of the Interior .Bureau of Reclamation. United States department of interior, office of education ;