1931. Washington and Oregon Highways. Vicinity of Seattle and Tacoma. Vicinity of Portland. Portland; Seattle; Spokane; SeattleRichfield Roads to Roam

Chicago citation style
Richfield Oil Company of California, The W.C. Eubank Co. 1931. Washington and Oregon Highways. Vicinity of Seattle and Tacoma. Vicinity of Portland. Portland; Seattle; Spokane; Seattle,Richfield Roads to Roam. 1930. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~290433~90061992. (Accessed December 11, 2018.)
APA citation style
Richfield Oil Company of California, The W.C. Eubank Co, (1930) 1931. Washington and Oregon Highways. Vicinity of Seattle and Tacoma. Vicinity of Portland. Portland; Seattle; Spokane; Seattle,Richfield Roads to Roam. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~290433~90061992
MLA citation style
Richfield Oil Company of California, The W.C. Eubank Co. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~290433~90061992>.
Note: These citations are programmatically generated and may be incomplete.