J. L. · J. Lawrence · Joe Lawrence Jr. · Jr. Joe Lawrence
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Cave Beyond | 978-0-914264-17-0 (0-914264-17-6) | 1975 | |
| Caves Beyond: The Story of Floyd Collins' Crystal Cave Exploration | 978-0-914264-18-7 (0-914264-18-4) | 1975 | Roger W. Brucker · Floyd Collins' Crystal Cave Exploration |