doi:10.7916/d8-rd9g-y842Completion of the Northern State Parkway and Sagtikos State Parkway, September 29, 1952bookstextHighway engineering--New York (State)--Long Island.Regional planning--New York (State)--Long Island.Parkways--New York (State)--Long Island.Long Island (N.Y.)--History.Northern State Parkway (N.Y.)Sagikos State Parkway (N.Y.)