An edition of The celestite resources of the area north-east of Bristol (1976)

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

By E. F. P. Nickless