Air mail study .
Published: 1948
Place of publication: Montreal
Language: eng
Number of pages: 114
Subjects: Air mail service
Notes: At head of title: Doc 5348-AT/654.

Microfilm. New York, N.Y., Columbia University Libraries, 1995. 1 microfilm reel, 35 mm.

Filmed; NEH Project (FMEST); 1995.