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gis.clark.wa.gov
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Duin, Steve (December 4, 2000). "150 roiling years of delivering the news". The Oregonian. Portland, Oregon: Oregonian Publishing. Reprinted in OregonLive. Advance Internet. Archived from the original on September 30, 2007. Retrieved December 23, 2006.
"Cascade Mountains". Mid-Columbia History. The Dalles, Oregon: Gorge.net. 2006. Archived from the original on July 7, 2007. Retrieved December 24, 2006. citing McNeil, Fred H. (1937). Wy'East The Mountain, A Chronicle of Mount Hood. Metropolitan Press. ASIN B000H5CB6E, ASIN B00085VH7W.
"Portland Saga". Time (Online). New York City: Time Warner. October 3, 1938. Archived from the original on September 30, 2007. Retrieved December 23, 2009.
"Camas and the blue lily (1883)". Clark County (Official website). Vancouver, Washington: Clark County Public Information and Outreach. 2006. Archived from the original on September 23, 2006. Retrieved December 24, 2006.
"Appendix"(PDF). 2005 Population and Economic Handbook. Vancouver, Washington: Clark County Department of Assessment & GIS. 2005. Archived from the original(PDF) on May 28, 2006. Retrieved December 23, 2006.
"Hot off the press—inside the Telegram building"(PDF). Architectural Heritage Center Quarterly News and Notes. Portland, Oregon: Bosco-Milligan Foundation. Fall 2002. Archived from the original(PDF) on September 29, 2007. Retrieved December 24, 2006.
"Frederick W. Leadbetter". History. Vancouver, Washington: Columbian.com. 2006. Archived from the original on October 19, 2006. Retrieved December 24, 2006.
"Twins and Trusts". Time (Online). New York City: Time Warner. February 13, 1939. Archived from the original on December 15, 2006. Retrieved December 12, 2006.
"Newspaper Hall of Fame". Oregon Newspaper Publishers Association (Official Website). Portland, Oregon: ONPA. 2006. Archived from the original on October 8, 2007. Retrieved December 23, 2006.