You can do simple searches using this form:

Type	Originator	Title	Date
		Caves and Swallets of the River Manifold
	Clozier,R	Les Causses du Quercy	1940
	Gospodaric,R, Habic,P & Kranjc,A (Eds)	Papers 3rd International Symposium on Underground Water Tracing
	Graf,F	Stockage de Calcium, Crustaces Amphipodes	1968
	Royal Geological Society of Cornwall (Trans. Vol 18 Part 2, pp.146-214)	The Plymouth Limestone; and the Devonian tetracorals	1951
	Geologists Association, S.Wales Group	Welsh Geological Quarterly Vol.2 No 1
	Milojevic,B.Z	la Geographie des Terrains Calcaires	1960