A survey of roof supports examined by SMRE during the period 1960-1967

An edition of A survey of roof supports examined by SMRE during the period 1960-1967 (1969)

A survey of roof supports examined by SMRE during the period 1960-1967

By S. G. Harris

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Publish Date

1969

Publisher

Safety in Mines Research Establishment

Language

eng

Pages

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