Universal Postal Union Convention of Buenos Aires, May 23, 1939
Publisher: U.S. G.P.O.
Published: 1940
Place of publication: Washington, D.C
Language: eng; fre
Number of pages: 246
Subjects: Postal conventions
Work titles: Universal Postal Convention (1939)
Notes: French and English in parallel columns.

Seal on t.p.: Post Office Department, United States of America.