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Type	Originator	Title	Date
	Telford,W.M, Geldart,L.P & Sheriff,R.E	Applied Geophysics	1990
		Codification of Bibliographical Card Index's	1960
	Balch,H.E	Mendip cheddar its gorge and caves	1935
	Spargo,T	Mines of Wales
	Prosser,J & Grey,H.V	NSS Cave Diving Manual	1992
	Carr,S. J, Coleman C. G, Humphage A. J & Shakesby. R.A	Quaternary of the Brecon Beacons field Guide	2007
	Cowman,D & Reilly,T.A	The Abandoned Mines of West Carbery	1988
		The English Dictionary	1995
	Karavanic,I	Zivot Neandertalaca	2004