Study of quarry costs :trap rock, sandstone, granite

Author: Thoenen, J. R.
Year: 1930
Document Type: USBI
Issuing Agency: U.S. Dept. of Commerce, Bureau of Mines,
SUDOC: C 22.11:6291
Series: Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number: 6291
Subject: Quarries and quarrying
Link: https://hdl.handle.net/2027/mdp.39015077576109

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