Freeman Bibliographical Database
| Identifier: | F2918 |
| Date: | 2017 |
| Concise reference: | Darwin, C. R. 2017. Geological observations on South America. USA: Andesite Press. |
| Identifier: | F2918 |
| Date: | 2017 |
| Concise reference: | Darwin, C. R. 2017. Geological observations on South America. USA: Andesite Press. |