Edited by Frederick Burkhardt · F. Burkhardt · Friedrich Burkhardt
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Charles Darwin: The Beagle Letters | 978-0-521-89838-6 (0-521-89838-2) | 2008 |
| The Correspondence of Charles Darwin: Volume 16, 1868: Parts 1 and 2: 1868 January to June, July to December: v. 16 | 978-0-521-51836-9 (0-521-51836-9) | 2008 |