THE POLLUTED SCHUYKILL RIVER AND CENTER CITY IN BACKGROUND

Chicago citation style
Environmental Protection Agency. 12/2/1970-. THE POLLUTED SCHUYKILL RIVER AND CENTER CITY IN BACKGROUND. 1973-09. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/552715. (Accessed June 18, 2018.)
APA citation style
Environmental Protection Agency. 12/2/1970-, (1973-09) THE POLLUTED SCHUYKILL RIVER AND CENTER CITY IN BACKGROUND. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/552715
MLA citation style
Environmental Protection Agency. 12/2/1970-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/552715>.
Note: These citations are programmatically generated and may be incomplete.