TY  - BOOK
AU  - Middleton,John
AU  - Waltham,Tony
TI  - The underground atlas: a gazetteer of the world's cave regions 
SN  - 0709027982 :
U1  - 551.44 
PY  - 1986///
CY  - London
PB  - Robert Hale
KW  - Caves
KW  - Landforms
N1  - Bibliography: p. 234-235
ER  -