The postal history of Puerto Rico
By: by R.B. Preston and M.H. Sanborn.
Contributors: Sanborn, M. H.
Publisher: Published by The American Philatelic Society thru the medium of the A.P.S. Philatelic Research and Literature Committee
Published: 1950
Place of publication: State College, Pa
Language: eng
Number of pages: 100
Subjects: Postage stamps -- Puerto Rico -- History.