Speleology : caves and the cave environment /
Moore, George William, 1928-
Speleology : caves and the cave environment / George W. Moore, Nicholas Sullivan ; prepared in cooperation with the National Speleological Society ; illustrated by John C. Schoenherr. - 3rd ed. - St. Louis : Cave Books, 1997. - xiv, 176 p. : ill.
0939748460 9780939748464 0939748452 9780939748457
Speleology.
Espeleología.
551.44
Speleology : caves and the cave environment / George W. Moore, Nicholas Sullivan ; prepared in cooperation with the National Speleological Society ; illustrated by John C. Schoenherr. - 3rd ed. - St. Louis : Cave Books, 1997. - xiv, 176 p. : ill.
0939748460 9780939748464 0939748452 9780939748457
Speleology.
Espeleología.
551.44