A system of accounts for the slate industry

Author: Bowles, Oliver,
Year: 1929
Document Type: BMRA
Issuing Agency: U.S. Dept. of Commerce, Bureau of Mines,
SUDOC: C 22.12:2971
Series: Report of investigations / United States Department of Commerce, Bureau of Mines ;
Report Number: 2971
Subject: Slate
Link: https://hdl.handle.net/2027/mdp.39015077566415

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