| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Wilderness Debate Rages On: Continuing the Great New Wilderness Debate | 978-O-82O3-3171-3 (O-82O3-3171-6) | 2008 | J. Callicott · Michael Nelson · Anne Demo · Antonio Diegues · Dave Foreman · David W. Orr · Eileen Crist |