Delta Air Lines System Timetable 1966 February 1
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1966 February 1." Delta Flight Museum. 1966-02-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19660201.
APA
Delta Air Lines, Inc. (1966-02-01). Delta Air Lines System Timetable 1966 February 1. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19660201
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1966 February 1." 1966-02-01. July 30, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19660201.
