The location and treatment of disused mine shafts
Oscroft, G.
The location and treatment of disused mine shafts - 1981
In RICS Minerals Division. The problems of disused mine shafts. One-day conference, 2nd December 1981. 1981/90 ABC
The location and treatment of disused mine shafts - 1981
In RICS Minerals Division. The problems of disused mine shafts. One-day conference, 2nd December 1981. 1981/90 ABC