Delta Air Lines System Timetable 1952 January 1
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1952 January 1." Delta Flight Museum. 1952-01-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19520101.
APA
Delta Air Lines, Inc. (1952-01-01). Delta Air Lines System Timetable 1952 January 1. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19520101
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1952 January 1." 1952-01-01. April 30, 2026. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19520101.
