Freeman Bibliographical Database
| Identifier: | A5752 |
| Date: | 1877 |
| Concise reference: | Ryder, John A. 1877. On the laws of digital reduction. American Naturalist 11: 603-607. [Darwin Pamphlet Collection] |


| Identifier: | A5752 |
| Date: | 1877 |
| Concise reference: | Ryder, John A. 1877. On the laws of digital reduction. American Naturalist 11: 603-607. [Darwin Pamphlet Collection] |