Freeman Bibliographical Database
| Identifier: | A5989 |
| Date: | 1859 |
| Concise reference: | Spooner, William Charles. 1859. On cross breeding. Journal of the Royal Agricultural Society of England 20: 294-313. [Darwin Pamphlet Collection] |
| Identifier: | A5989 |
| Date: | 1859 |
| Concise reference: | Spooner, William Charles. 1859. On cross breeding. Journal of the Royal Agricultural Society of England 20: 294-313. [Darwin Pamphlet Collection] |