Airway Map of the United States

Chicago citation style
Ford Motor Company. Airway Map of the United States. 1928. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~273082~90047847. (Accessed December 18, 2018.)
APA citation style
Ford Motor Company, (1928) Airway Map of the United States. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~273082~90047847
MLA citation style
Ford Motor Company. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~273082~90047847>.
Note: These citations are programmatically generated and may be incomplete.