Landslides and undermining research project : final report /
Sir William Halcrow & Partners.
Great Britain.Department of the Environment.
Great Britain.Welsh Office.
University of Nottingham.Department of Mining Engineering.
Cardiff : Halcrow,
1997.
Halcrow in association with Department of Mining Engineering Nottingham University - on t.p.
Bibliography: p162-168
Landslides
Coal