United States. Army. Corps of Engineers. (1933). Columbia River and minor tributaries: Letter from the Secretary of War transmitting pursuant to section 1 of the River and harbor act approved January 21, 1927, a letter from the Chief of Engineers, United States Army, dated March 29, 1932, submitting a report, together with accompanying papers and illustrations, containing a general plan for the improvement of the Columbia River and minor tributaries for the purposes of navigation and efficient development of water-power, the control of floods and the needs of irrigation .. U.S. Govt. Print. Off..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Army. Corps of Engineers. Columbia River and Minor Tributaries: Letter from the Secretary of War Transmitting Pursuant to Section 1 of the River and Harbor Act Approved January 21, 1927, a Letter from the Chief of Engineers, United States Army, Dated March 29, 1932, Submitting a Report, Together with Accompanying Papers and Illustrations, Containing a General Plan for the Improvement of the Columbia River and Minor Tributaries for the Purposes of Navigation and Efficient Development of Water-power, the Control of Floods and the Needs of Irrigation .. Washington: U.S. Govt. Print. Off., 1933.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. Army. Corps of Engineers. Columbia River and Minor Tributaries: Letter from the Secretary of War Transmitting Pursuant to Section 1 of the River and Harbor Act Approved January 21, 1927, a Letter from the Chief of Engineers, United States Army, Dated March 29, 1932, Submitting a Report, Together with Accompanying Papers and Illustrations, Containing a General Plan for the Improvement of the Columbia River and Minor Tributaries for the Purposes of Navigation and Efficient Development of Water-power, the Control of Floods and the Needs of Irrigation .. U.S. Govt. Print. Off., 1933.