Ecuador. Pan American World Airways. Printed in U.S.AEcuador

Chicago citation style
Pan American World Airways, Coplan, Maxwell. Ecuador. Pan American World Airways. Printed in U.S.A,Ecuador. 1950. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292803~90063992. (Accessed December 19, 2018.)
APA citation style
Pan American World Airways, Coplan, Maxwell, (1950) Ecuador. Pan American World Airways. Printed in U.S.A,Ecuador. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292803~90063992
MLA citation style
Pan American World Airways, Coplan, Maxwell. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292803~90063992>.
Note: These citations are programmatically generated and may be incomplete.