Cover Oregon

[2007-09-10]. （原始内容存档于2018-10-24）.  Sheet Music Cover, Oregon, My Oregon. Oregon History Project. Oregon Historical Society. [2016-06-17]. （原始内容存档于2022-02-19）

River）。 McArthur, Lewis A.; McArthur, Lewis L. Oregon Geographic Names Seventh. Portland, Oregon: Oregon Historical Society Press. 2003: 1006. ISBN 0-87595-277-1

（页面存档备份，存于互联网档案馆） Halfway Community Profile （页面存档备份，存于互联网档案馆）, Business Oregon From cover to cover: Reflections from SI's first swimsuit star （页面存档备份，存于互联网档案馆）,

Out (Portland, Oregon). 2011-06-02 [2011-07-21]. （原始内容存档于2011-07-21）.  Rook, Erin. Oregonian Cites 'Human Error' in Failure to Cover Rally Against Anti-Gay

Jaquiss, Nigel; John Schrag. The 30-Year Secret - A crime, a cover-up and the way it shaped Oregon. Willamette Week. 2004-05-12 [2013-08-17]. （原始内容存档于2013-07-30）