TY  - BOOK
ED  - Puerto Rico.
TI  - The Communications infrastructure of Puerto Rico
PY  - 1990///?]
CY  - [Hato Rey, P.R.?
PB  - Commonwealth of Puerto Rico, Economic Development Administration?
KW  - Telecommunication
KW  - Puerto Rico
KW  - Local
KW  - Communication
N1  - Cover title
ER  -