| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| 18 Million Real Things: 150 Years of Discovery at the California Academy of Sciences | 978-0-940228-57-3 | 2003 | Patrick Kociolek · Michele Wellck · John McCosker · Brian Fisher · David Kavanaugh |
| Indo Pacific Nudibranchs and Sea Slugs | 978-0-9700574-3-3 | 2008 | David Behrens · Angel Valdes |
| Nudibranch & Sea Slug Identification | 978-1-878348-59-3 | 2015 | Angel Valdes · David Behrens |
| Nudibranch & Sea Slug Identification - Indo-Pacific- 2nd Edition | 978-1-878348-67-8 | 2018 | Angel Valdes · David Behrens |
California Academy of Sciences · New World Publications · Sea Challengers