Author: | Sammarco, John J. |
---|---|
Year: | 1990 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:9326 |
Series: | Report of investigations / United States. Bureau of Mines ; |
Report Number: | 9326 |
Subjects: | Navigation--Data processing |
Coal-mining machinery--Automatic control | |
Link: | https://hdl.handle.net/2027/mdp.39015078479444 |