A journey of exploration through the caves of the Yorkshire Dales, by Dave Haigh and John Cordingley.
Alan Thomas' collection of cave diving stories of exploration, published under the Ina Books imprint.
The Andros Project expedition report 1987
Expedition Gunung Lanno
Northern Caves by Sam Allshorn and Paul Swire
Caves and Karst of the Yorkshire Dales edited by Tony Waltham and David Lowe