Browsing by Author Aspden, John
Showing results 1 to 1 of 1
| Issue Date | Title | Author(s) |
|---|---|---|
| 1990 | La Geología y Potencial Mineral De La Cordillera Real, Ecuador. | Alcocer C., Fabiola, Directora; Aspden, John; Bermúdez A., Ramiro; Viteri S., Francisco; Pozo T., Miguel |