P. H. ยท P. Higgins
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Earth is Our Business: Changing the Rules of the Game | 978-0-85683-288-8 (0-85683-288-X) | 2011 |
| Eradicating Ecocide: Laws and Governance to Stop the Destruction of the Planet | 978-0-85683-275-8 (0-85683-275-8) | 2010 |