Freeman Bibliographical Database
| Identifier: | F3251 |
| Date: | 2015 |
| Concise reference: | Darwin, C. R. 2015. The formation of vegetable mould, through the action of worms, with observations on their habits. USA: Andesite Press. |


| Identifier: | F3251 |
| Date: | 2015 |
| Concise reference: | Darwin, C. R. 2015. The formation of vegetable mould, through the action of worms, with observations on their habits. USA: Andesite Press. |