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Type	Originator	Title	Date
	Saura Ramos,P.A	Altamira	1998
	Durand,R & Nant,J	Atlas des Grottes de Savoie [Packs of separate maps (8 sheets) surveys (13 sheets)]	1998
	Hawkins,D	Bath Stone Quarries	2011
	Taylor,M.R	Caves, Exploring Hidden Realms	2001
	Wilson,J	Lemurs of the Lost World	1990
	Kuhn,H	On the Track of Prehistoric Man	1955
	Graf,F	Stockage de Calcium, Crustaces Amphipodes	1968
	Jones,G	The district of Sennybridge, Trecastle and Defynnog Book 2	2000