| |
| | Abyss |
 | | Guidebook to Karst and Caves of Tennessee and Missouri; Eighth International Congress of Speology [1981], Crawford, Nicholas, and Vineyard, Jerry D. Guidebook to the Historic Section of Mammoth Cave [1981], Palmer, Arthur N., Palmer, Margaret V., and White, William B. Guidebook to the Karst of the Central Appalachians [1981], Werner, Eberhard |
 | | Caves of California (copy) [1962], Halliday, William R. Jamaica Underground; The Caves, Sinkholes and Underground Rivers of the Island [1977], Finchman, Alan G. Caves of Washington - Geology Circular 40 [1963], Halliday, William R. Caves of Missouri Vol. |
 | | Caves of Colorado [1973], Parris, Lloyd E. The Caves of France and Northern Spain [1962], Sieveking, Ann, and Sieveking, Gale |
| www.nevtek.com /bccs/bccstitl.htm (10896 words) |
|