D. P. · D. Porter · Duncan M. Porter
Penguin · Stanford University Press
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Flora of the Galapagos Islands | 978-0-8047-0732-9 (0-8047-0732-4) | 1971 | Ira Wiggins |
| The Portable Darwin | 978-0-14-015109-1 (0-14-015109-5) | 1994 | Charles Darwin · Peter Graham |