Author: | Beck, William A. |
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Year: | 1962 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:8092 |
Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 8092 |
Subject: | Sand and gravel industry--Michigan--Cost of operation |
Link: | https://hdl.handle.net/2027/mdp.39015078456459 |