United States. Congress. House. Committee on Rivers and Harbors & ProQuest (Firm). (1911). Letter from the Secretary of War, transmitting, with a letter from the Chief of Engineers, reports of preliminary examination and survey of Columbia and lower Willamette Rivers, below Portland, Oreg. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Rivers and Harbors and ProQuest (Firm). Letter from the Secretary of War, Transmitting, with a Letter from the Chief of Engineers, Reports of Preliminary Examination and Survey of Columbia and Lower Willamette Rivers, Below Portland, Oreg. Washington: [publisher not identified], 1911.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Rivers and Harbors and ProQuest (Firm). Letter from the Secretary of War, Transmitting, with a Letter from the Chief of Engineers, Reports of Preliminary Examination and Survey of Columbia and Lower Willamette Rivers, Below Portland, Oreg. [publisher not identified], 1911.