| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Dangerous World: Natural Disasters, Manmade Catastrophies, and the Future of Human Survival | 978-0-670-06568-4 (0-670-06568-4) | 2008 |
| De Villiers Marq: down the Volga in A Time of Troubles | 978-0-670-84353-4 (0-670-84353-9) | 1992 |