| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1999 | 978-1-933352-02-2 | Henry K. cARROLL | Report of Porto Rico (1899) |
| 2005 | 978-1-933352-03-9 | R. A. Van Middeldyk | The history of Porto Rico (1903) |
| 2006 | 978-1-933352-22-0 | Jeuús Martín Ramos | Las comunicaciones en la isla de Puerto Rico: 1850-1898 |