The Mining and Quarry Industry of New York State D. H. Newland

Excerpt from The Mining and Quarry Industry of New York State: Report of Operations and Production During 1911

The mineral industries of the State shared the general dullness and reaction which marked the prevailing course of business operations Это и многое другое вы найдете в книге The Mining and Quarry Industry of New York State (D. H. Newland)