| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1986 | 978-0-9615093-0-9 | Carol A. Hill | Cave Minerals of the World |
| 1987 | 978-0-9615093-2-3 | Allen Padgett ยท Bruce Smith | On Rope |
| 1989 | 978-0-9615093-4-7 | Larry E. Matthews | Cumberland Caverns |
| 1991 | 978-0-9615093-7-8 | Paul H. Damon | Caving in America: The Story of the National Speleological Society |