R. C. · R. Costa · Rebecca D. Costa · Rebecca Soler Costa
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Watchman's Rattle: A Radical New Theory of Collapse | 978-1-59315-686-2 (1-59315-686-3) | 2012 |
| The Watchman's Rattle: Thinking Our Way Out of Extinction | 978-1-59315-605-3 (1-59315-605-7) | 2010 |