Suggested Topics within your search.
Suggested Topics within your search.
Quarries and quarrying
Aggregates (Building materials)
1
Economic conditions
1
Environmental aspects
1
Labor disputes
1
Law and legislation
1
Mine safety
1
Mines and mineral resources
1
Penrhyn Quarry Workers' Strike, Wales, 1900-1903
1
Photography, Artistic
1
Safety regulations
1
Slate industry
1
Social conditions
1
Soils
1
Strikes and lockouts
1
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2Published 1977Edition: 3rd ed.Book
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