Oliver Bowles eBooks
eBooks di Oliver Bowles di Formato Pdf
The Technology of Slate. E-book. Formato PDF
Oliver Bowles
edizioni Forgotten Books collana , 2017
Under a cooperative agreement between the Bureau of Mines, the United States Geological Survey, and the United States Bureau of Standards, a study of the stone-quarrying industries of the coun try was begun in 1914. The results of investigations made have been published from time to time.1 During the World War the...