Experiments on methane roof layers
Subtitle: multiple sources
By: by S.J. Leach and L.P. Barbero
Contributors: Leach, S. J.
Series: Research reports -- no. 205; Research report (Safety in Mines Research Establishment (Great Britain)) -- no. 205.
Publisher: Safety in MInes Research Establishment
Published: 1961
Language: eng
Number of pages: 10