J.M. · J. McDowell · Jack C. McDowell · Jack M
| title | ISBN-13 (ISBN-10)  | year of publica- tion  | other author(s) | 
|---|---|---|---|
| Discovering the California Coast | 978-0-376-05181-3 (0-376-05181-7)  | 1975 | |
| Sports Illustrated Backpacking | 978-0-06-015072-3 (0-06-015072-6)  | 1980 | Michael Sandi |