United States. Army. Corps of Engineers. Portland District. (1985). Green Peter & Foster Lakes, Oregon. The District.
Chicago Style (17th ed.) CitationUnited States. Army. Corps of Engineers. Portland District. Green Peter & Foster Lakes, Oregon. Portland, Or.: The District, 1985.
MLA (9th ed.) CitationUnited States. Army. Corps of Engineers. Portland District. Green Peter & Foster Lakes, Oregon. The District, 1985.
Warning: These citations may not always be 100% accurate.