United Flight 823

The Last Flight of United Airlines 823, by Tom Dier https://www.amazon.com/dp/1984237829

The NATIONAL AIR DISASTER ALLIANCE/FOUNDATION http://www.planesafe.org/

The Vickers Viscount Network: http://www.vickersviscount.net/

Capital Airlines Time Tables: http://timetableimages.com/ttimages/ca2.htm

United Airlines Time Tables: http://timetableimages.com/ttimages/ua.htm