| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| National Geographic's Asteroids: Deadly Impact | 978-0-7922-5206-1 (0-7922-5206-3) | 1997 | Al Giddings · Alexander Grasshoff · James Lipscomb |
| National Geographic's Sea Nasties with Leslie Nielsen | 6304779712 (6304779712) | 1998 | Al Giddings · Alexander Grasshoff · James Lipscomb |