APA引文

United States. Army. Corps of Engineers. (1951). Columbia River and tributaries, northwestern United States: Letter from the Secretary of the Army transmitting a letter from the Chief of Engineers, United States Army, dated June 28, 1949, submitting a report .. U.S. Govt. Print. Off..

Chicago Style (17th ed.) Citation

United States. Army. Corps of Engineers. Columbia River and Tributaries, Northwestern United States: Letter from the Secretary of the Army Transmitting a Letter from the Chief of Engineers, United States Army, Dated June 28, 1949, Submitting a Report .. Washington, D.C.: U.S. Govt. Print. Off., 1951.

MLA引文

United States. Army. Corps of Engineers. Columbia River and Tributaries, Northwestern United States: Letter from the Secretary of the Army Transmitting a Letter from the Chief of Engineers, United States Army, Dated June 28, 1949, Submitting a Report .. U.S. Govt. Print. Off., 1951.

警告：這些引文格式不一定是100％准確.