Douro valley
| Author(s) | Title | Reference | |
|---|---|---|---|
| ROBERT BRIAN TATE | The Travels of the Infante Dom Pedro of Portugal, by Francis M. Rogers | 32/2, p. 155 |
| Author(s) | Title | Reference | |
|---|---|---|---|
| ROBERT BRIAN TATE | The Travels of the Infante Dom Pedro of Portugal, by Francis M. Rogers | 32/2, p. 155 |