Author: | Friedel, Robert A. |
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Additional Authors: | Retcofsky, H. L. |
Year: | 1967 |
Document Type: | N/A |
Issuing Agency: | United States. Bureau of Mines. |
SUDOC: | I 28.3:640 |
Series: | United States Bureau of Mines Reports |
Report Number: | Bulletin 640 |
Subjects: | Coal -- Analysis. |
Coal -- Spectra. | |
Link: | https://digital.library.unt.edu/ark:/67531/metadc12791/ |