Delta Air Lines annual report 1974
MLA
Delta Air Lines, Inc.. "Delta Air Lines annual report 1974." Delta Flight Museum. 1974-08, https://dlg.galileo.usg.edu/do:delta_dal-ar_dal-ar-1974.
APA
Delta Air Lines, Inc. (1974-08). Delta Air Lines annual report 1974. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-ar_dal-ar-1974
Chicago
Delta Air Lines, Inc.. "Delta Air Lines annual report 1974." 1974-08. February 9, 2026. https://dlg.galileo.usg.edu/do:delta_dal-ar_dal-ar-1974.
