United States. Congress. House. Committee on Appropriations, ProQuest (Firm), & Smithsonian Institution. (1872). Survey of the Colorado River of the West. Letter from the Secretary of the Smithsonian Institution, transmitting report preliminary for continuing the survey of the Colorado of the West and its tributaries, by Professor Powell. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Appropriations, ProQuest (Firm), and Smithsonian Institution. Survey of the Colorado River of the West. Letter from the Secretary of the Smithsonian Institution, Transmitting Report Preliminary for Continuing the Survey of the Colorado of the West and Its Tributaries, by Professor Powell. Washington: [publisher not identified], 1872.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Appropriations, et al. Survey of the Colorado River of the West. Letter from the Secretary of the Smithsonian Institution, Transmitting Report Preliminary for Continuing the Survey of the Colorado of the West and Its Tributaries, by Professor Powell. [publisher not identified], 1872.