Freeman Bibliographical Database
| Identifier: | A4737 |
| Date: | 1879 |
| Concise reference: | Julien, Alexis A. 1879. On the geological action of the humus acids. Proceedings of the American Academy of Arts and Sciences. [Darwin Pamphlet Collection] |
| Identifier: | A4737 |
| Date: | 1879 |
| Concise reference: | Julien, Alexis A. 1879. On the geological action of the humus acids. Proceedings of the American Academy of Arts and Sciences. [Darwin Pamphlet Collection] |