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| | Transportation In Puerto Rico - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-12) |
 | | Transportation and travel : official table of distances, continental United States, Alaska, Hawaii, Canada, Canal Zone, Central America, Mexico, and Puerto Rico (SuDoc D 101.9:55-60/982) |
 | | An economic study of the hauling of sugar cane by motor truck: Puerto Rico, 1948 and 1949 (Bulletin / University of Puerto Rico. |
 | | Striking of a submerged object by the Bahamian tankship, Esso Puerto Rico, Mississippi River, Kenner, Louisiana, September 3, 1988 (SuDoc TD 1.116:89/02) |
| encyclopedia.worldsearch.com /transportation_in_puerto_rico.htm (136 words) |
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