- Fighting for Survival: Environmental Decline, Social Conflict, and the New Age of Insecurity (The Worldwatch Environmental Alert Series)
- Vital Signs 1997: The Environmental Trends That Are Shaping Our Future (Vital Signs)
- The Conspiracy of Deception and Trickery
- The Conspiracy of Deception and Trickery
- Grund-Regel Oder Weeg-Weiser Zu Der Lateinischen Sprache