Civil Aeronautics Board accident report into the crash of Pennsylvania Central Airlines Flight 19 on 31 August 1940
Civil Aeronautics Board, US Department of Commerce
1940
US Department of Transportation Special Collections <a rel="nofollow" class="external autonumber" href="http://specialcollection.dotlibrary.dot.gov/Document?db=DOT-AIRPLANEACCIDENTS&amp;query=(select+88)">[1]</a>