The celestite resources of the area north-east of Bristol : with notes on occurrences north and south of the Mendip Hills and in the Vale of Glamorgan : description of 1:25,000 resource sheet ST 68 and parts of ST 59, 69, 79, 58, 67, and 77 /
Nickless, E. F. P.
Booth, S. J.
Mosley, P. N.
London : H.M.S.O.,
1976.
At head of title: Institute of Geological Sciences, Natural Environment Research Council.
Folded map in pocket.
Bibliography: p. 83.
Celestite