Explanation of one-inch geological sheet
H.M.S.O
by J.G.O. Smart, G. Bisson, and B.C. Worssam
H.M.S.O. 1966 Memoirs of the geological survey of Great Britain England and Wales , Explanation of one-inch geological sheet 289, 305-306, new ser.
所蔵館1館
by E.A. Edmonds and the late C.H. Dinham; with contributions by J.B.W. Day and R. Casey
H.M.S.O. 1965 Memoirs of the geological survey of Great Britain England and Wales , Explanation of one-inch geological sheet 187, 204, new ser.