Universal postal convention signed at London 28th June, 1929
Subtitle: Ratified 6th November, 1929
Series: Canada. Treaties, etc. Treaty series -- 1929, no. 15
Publisher: F.A. Acland, printer to the King
Published: 1931
Place of publication: Ottawa
Language: eng
Number of pages: 86
Subjects: Postal conventions
Notes: At head of title: Dominion of Canada ...

Issued also in French.