Exploring American caves, [their history, geology, lore and location
Folsom, Franklin
Exploring American caves, [their history, geology, lore and location a spelunker's guide] - New York Crown Pub. 1956. - 280 p. illus.
Includes bibliography.
56007190 /L
Caves--United States.
GB604 / .F6 1956
551.44
Exploring American caves, [their history, geology, lore and location a spelunker's guide] - New York Crown Pub. 1956. - 280 p. illus.
Includes bibliography.
56007190 /L
Caves--United States.
GB604 / .F6 1956
551.44