Delta Air Lines System Timetable 1966 December 14
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1966 December 14." Delta Flight Museum. 1966-12-14, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19661214.
APA
Delta Air Lines, Inc. (1966-12-14). Delta Air Lines System Timetable 1966 December 14. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19661214
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1966 December 14." 1966-12-14. July 28, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19661214.
