THE COLUMBIA RIVER GORGE

Chicago citation style
Environmental Protection Agency. 12/2/1970. THE COLUMBIA RIVER GORGE. 1973-05. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/548010. (Accessed September 23, 2018.)
APA citation style
Environmental Protection Agency. 12/2/1970, (1973-05) THE COLUMBIA RIVER GORGE. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/548010
MLA citation style
Environmental Protection Agency. 12/2/1970. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/548010>.
Note: These citations are programmatically generated and may be incomplete.