Freeman Bibliographical Database
| Identifier: | A1952 |
| Date: | 1877 |
| Concise reference: | Anon. 1877. [On the formation of mould]. The agricultural value of worms. Scientific American (29 September): 193. |


| Identifier: | A1952 |
| Date: | 1877 |
| Concise reference: | Anon. 1877. [On the formation of mould]. The agricultural value of worms. Scientific American (29 September): 193. |