TY  - BOOK
ED  - Puerto Rico Ports Authority.
TI  - Quarterly maritime report
CY  - [San Juan, P.R.?]
PB  - Economics Research Office, P.R. Ports Authority
KW  - Shipping
KW  - Puerto Rico
KW  - Statistics
KW  - Periodicals
KW  - Local
N1  - Description based on: Apr.-June 1989; title from cover
ER  -