This primary source comes from the Records of the Environmental Protection Agency.
National Archives Identifier:
555504Full Citation: 'Pool It' Sign North Of Vancouver, Washington, Was A Reminder That The Gasoline Shortage Was Not Over In March, 1974 And Sharing Rides Was A Good Idea; 3/1974; Records of the Environmental Protection Agency, Record Group 412. [Online Version, https://www.docsteach.org/documents/document/pool-it-sign-north-of-vancouver-washington-was-a-reminder-that-the-gasoline-shortage-was-not-over-in-march-1974-and-sharing-rides-was-a-good-idea, April 25, 2024]