Aircraft Accident Report for the crash of Allegheny Airlines Flight 371 on 1 December 1959. Report prepared by the Civil Aeronautics Board, part of the US Department of Transportation, and released on 8 November 1960.
Civil Aeronautics Board, US Department of Transportation
1960-11-08
US Department of Transportation Online Archives, Special Collection <a rel="nofollow" class="external autonumber" href="http://specialcollection.dotlibrary.dot.gov/Document?db=DOT-AIRPLANEACCIDENTS&amp;query=(select+676)">[1]</a>