APA (7th ed.) Citation

Willingham, W. F. (1983). Army engineers and the development of Oregon: A history of the Portland District, U.S. Army Corps of Engineers. U.S. Army Corps of Engineers.

Chicago Style (17th ed.) Citation

Willingham, William F. Army Engineers and the Development of Oregon: A History of the Portland District, U.S. Army Corps of Engineers. [Washington, D.C.?: U.S. Army Corps of Engineers, 1983.

MLA (8th ed.) Citation

Willingham, William F. Army Engineers and the Development of Oregon: A History of the Portland District, U.S. Army Corps of Engineers. U.S. Army Corps of Engineers, 1983.

Warning: These citations may not always be 100% accurate.