Some aspects of opencast coal mining in South Wales
Subtitle: [paper] read before the South Wales Institute of Engineers at Cardiff, on 18th November, 1970.
Series: Proceedings -- vol. 86; No.1.
Publisher: South Wales Institute of Engineers
Published: 1974
Place of publication: Cardiff
Language: eng
Notes: Cover title.

"Excerpt from Proceedings, Volume LXXXVI No.1, with discussion".