Author: | Fraser, Thomas |
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Year: | 1921 |
Document Type: | N/A |
Series: | Report of investigations (United States. Bureau of Mines) |
Report Number: | Serial No. 2281 |
Subjects: | Steam-boilers. |
Fuel. | |
Coal mines and mining. | |
Energy conservation. | |
Link: | http://digital.library.unt.edu/ark:/67531/metadc100848/ |