Survey of United States overseas mail.
By: Prepared by Roland K. Abercrombie, principal analyst.
Contributors: Abercrombie, Ronald Knights, 1900-
Published: 1943
Place of publication: Washington
Language: eng
Number of pages: 43
Subjects: Air mail service -- United States.
Notes: Cover title.
At head of title:  Civil Aeronautics Boards.  Economic Bureau.  Research and Analysis Division.