Report
on the causes of, and circumstances attending,
the Explosion which occurred at Six Bells Colliery, Monmouthshire,
on
28th June, 1960
by
T. A. Rogers, C.B.E., M.I.Min.E.
H.M. Chief Inspector of Mines and Quarries
Presented to both Houses of Parliament by Command of Her Majesty
January, 1961.