Open cast mining
By: joint circular from the Department of the  Environment [and the] Welsh Office.
Contributors: Great Britain. Welsh Office.
Series: Circular / Department of the Environment -- 28/87; Circular / Welsh Office -- 54/87; Circular -- 28/87.; Circular -- 54/87.
Publisher: H.M.S.O.
Published: 1987
Place of publication: London
Language: eng