TY  - BOOK
AU  - Preston,R.B.
AU  - Sanborn,M.H.
TI  - The postal history of Puerto Rico
PY  - 1950///
CY  - Maryland
PB  - American Philatelic Society
KW  - Postage
KW  - stamps
KW  - Puerto Rico
KW  - Local
KW  - Postal service
KW  - History
ER  -