Freeman Bibliographical Database
| Identifier: | A5980 |
| Date: | 1867 |
| Concise reference: | Spencer, Herbert. 1867. First principles. 2d ed. London: Williams and Norgate. [signed][Darwin Library-Down] |
| Identifier: | A5980 |
| Date: | 1867 |
| Concise reference: | Spencer, Herbert. 1867. First principles. 2d ed. London: Williams and Norgate. [signed][Darwin Library-Down] |