Delta Air Lines System Timetable 1972 October 29
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1972 October 29." Delta Flight Museum. 1972-10-29, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19721029.
APA
Delta Air Lines, Inc. (1972-10-29). Delta Air Lines System Timetable 1972 October 29. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19721029
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1972 October 29." 1972-10-29. May 6, 2026. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19721029.
