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Review of mining instability in Great Britain. County maps: 1 South West England : Somerset & Avon. (1991)

Review of mining instability in Great Britain. County maps: 1 South West England : Dorset. - Scale 1:250,000. (1991)

Review of mining instability in Great Britain. County maps: 1 South West England : Devon. (1991)

Review of mining instability in Great Britain: county maps. 1 : South West England : Cornwall. (1991)

Review of mining instability in Great Britain. County maps: 1 South West England : Somerset & Avon. (1991)

Review of mining instability in Great Britain. County maps: 1 South West England : Dorset. (1991)

Review of mining instability in Great Britain. County maps: 1 South West England : Devon. (1991)

Review of mining instability in Great Britain: county maps. 1 : South West England : Cornwall. (1991)

Review of mining instability in Great Britain: regional report. 1 (1991)