You can do simple searches using this form:

Type	Originator	Title	Date
	Hierro,J. G	Aventura por la comarca del Ason	2001
	Iturralde-Vincent,M.A	Aventuras en el Mundo de las Tinirblas (Cuba)	2001
	Fogg, P & T	Beneath our Feet, The caves & Limestone scenery of the North of Ireland	2001
	Lascu. C	Caves beyond Time	2001
	Taylor,M.R	Caves, Exploring Hidden Realms	2001
	Cornwell,J	Collieries of South Wales : 1	2001
	Geyer,E (ed)	Expedition Gunung Lanno Malaysia	2001
	Holler Aulenbach. N & Barton. H. A	Exploring Caves	2001
	Simms,M	Exploring the Limestone Landscapes of the Burren & Gort Lowlands	2001
	Hempel,J. C & Fregeau-Conover,A	On Call a complete reference for cave Rescue	2001
	Ford,T.D	Sediments in Caves (BCRA Cave Studies Series No 9)	2001
	Fernandez, R. A	Sotanos de Mexico	2001
	Guilford, Lovett, Maurice	The Dig	2001
	O'Sullivan,T	Tower of Strength	2001
	Farr,Martyn	Underground Wales	2001