Freeman Bibliographical Database
| Identifier: | F1398 |
| Date: | 1966 |
| Concise reference: | Darwin, C. R. (1966). Darwin on humus and the earthworm. The formation of vegetable mould etc. Introduction by Sir Albert Howard. fourth impression. London: Faber and Faber. |
| Detailed reference: | 1398. (1966) London, Faber & Faber. As F1396, but fourth impression. 66-9240/ Darwin Library CUL, 67-92887. |