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Type	Originator	Title	Date
	Mason,E.J	Caves and Caving in Britain
	Cambrian Archaeological Association [Archaeologia Cambrensis 117, pp.18-71]	Ogof yr Esgyrn	1968
	Cambrian Archaeological Association [Archaeologia Cambrensis 117, pp.18-71]	Ogof yr esgyrn excavations	1968
	Mason,E.J	Portrait of the Brecon Beacons	1975
	Coysh,A. W, Mason,E.J & Waite,V	The Mendips	1962
	Mason,E.J	The Story of Wookey Hole	1970