State Laws Relating to Coal-mine Timbering James Washington Paul Published: 1928 Total Pages: 64 Get eBook
Some Suggestions on Safety in Timbering Anthracite Mines Robert Dewey Currie Published: 1939 Total Pages: 28 Get eBook
Some Information on Timbering Bituminous-coal Mines John Joseph Vincent Forbes Published: 1939 Total Pages: 932 Get eBook
Mining Library ...: Storms, W.H. Timbering and mining. [c1909 Published: 1909 Total Pages: 300 Get eBook
Mine Timber: Its Selection, Storage, Treatment, and Use Roy R. Hornor Published: 1925 Total Pages: 150 Get eBook
