Freeman Bibliographical Database
| Identifier: | A4362 |
| Date: | 1870 |
| Concise reference: | Gray, Asa. 1870. Revision of the North American Polemoniaceae. Proceedings of the American Academy of Arts and Sciences 8: 247-282. [Darwin Pamphlet Collection] |
| Identifier: | A4362 |
| Date: | 1870 |
| Concise reference: | Gray, Asa. 1870. Revision of the North American Polemoniaceae. Proceedings of the American Academy of Arts and Sciences 8: 247-282. [Darwin Pamphlet Collection] |