This primary source comes from the Records of the Environmental Protection Agency.
National Archives Identifier:
550039Full Citation: Boston Harbor - Looking toward Squantum. Long Island Bridge in distance. ; 5/1973; Records of the Environmental Protection Agency, Record Group 412. [Online Version, https://www.docsteach.org/documents/document/boston-harbor-looking-toward-squantum-long-island-bridge-in-distance, May 9, 2024]