Freeman Bibliographical Database
| Identifier: | A2913 |
| Date: | 1874 |
| Concise reference: | Gray, Asa. 1874. Robert Brown and Sprengel. Nature (2 July): 161. |
| Identifier: | A2913 |
| Date: | 1874 |
| Concise reference: | Gray, Asa. 1874. Robert Brown and Sprengel. Nature (2 July): 161. |