Pacific Northern Airlines, Inc. First Report to Stockholders 1947 [photocopy]
MLA
Pacific Northern Airlines, Inc.. "Pacific Northern Airlines, Inc. First Report to Stockholders 1947 [photocopy]." Delta Flight Museum. 1948, https://dlg.galileo.usg.edu/do:delta_pna-ar_pna-ar-1947.
APA
Pacific Northern Airlines, Inc. (1948). Pacific Northern Airlines, Inc. First Report to Stockholders 1947 [photocopy]. Retrieved from https://dlg.galileo.usg.edu/do:delta_pna-ar_pna-ar-1947
Chicago
Pacific Northern Airlines, Inc.. "Pacific Northern Airlines, Inc. First Report to Stockholders 1947 [photocopy]." 1948. May 22, 2026. https://dlg.galileo.usg.edu/do:delta_pna-ar_pna-ar-1947.
