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Type	Originator	Title	Date
	Waltham,T & Lowe,D (editors)	Caves and Karst of the Yorkshire Dales Vol 2	2017
	Le Guen,F	Les scaphandriers du desert	1986
	Lovelock,J	Life and death underground	1963
	Ford,T.D (editor)	Limestones and Caves of Wales	1989
	Ford,T.D (ed)	Limestones and caves of Wales	1989
	Nicod,J	Recherches Morphologiques en Basse-Provence Calcaire	1966
	Lyell,C	The Antiquity of Man	1873
	Oldham,T	The Caves and Mines of Anglesey	2006