P.K. · S Kramer · Stephen Kramer · Stephen P.
Carolrhoda Books · McGraw-Hill
| title | ISBN-13 | year of publica- tion |
|---|---|---|
| Avalanche | 978-0-87614-422-0 | 1992 |
| Caves | 978-0-87614-896-9 | 1995 |
| How to Think Like a Scientist: Answering Questions by the Scientific Method | 978-0-690-04565-9 | 1987 |
| Lightning | 978-0-87614-617-0 | 1993 |
| The Dark Zone: Exploring the Secret World of Caves | 978-0-07-036920-7 | 1998 |
| Tornado: Nature in Action | 978-1-57505-058-4 | 1997 |