A Comprehensive Reference Book on Practical Coal Mining W. Wardle Published: 1891 Total Pages: 744 Get eBook
Reports of the Industrial Commission ... United States. Industrial Commission Published: 1901 Total Pages: 1310 Get eBook
Duties on Metals and Manufactures of Metals United States. Congress. Senate. Committee on Finance Published: 1912 Total Pages: 1316 Get eBook
Pittsburgh Commodity Index Pittsburgh industrial development commission Published: 1913 Total Pages: 194 Get eBook
