Parcel Post Convention of Buenos Aires, September 15, 1921
Subtitle: together with the detailed regulations for its execution
Publisher: G.P.O.
Published: 1922
Place of publication: Washington
Language: eng; spa
Number of pages: 10
Subjects: Postal conventions
Notes: At head of title: Pan American Postal Union.

Spanish and English in parallel columns.

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

Includes index.