This primary source comes from the Records of the Environmental Protection Agency.
National Archives Identifier:
557217Full Citation: Pollution Sign Affixed to the Door of a Gasoline Service Station; 4/1973; Records of the Environmental Protection Agency, Record Group 412. [Online Version, https://www.docsteach.org/documents/document/pollution-sign-affixed-to-the-door-of-a-gasoline-service-station, April 25, 2024]