000 00302pam a2200109a 44500
082 _aTR
_bIC-7794
100 _aE. P. Carman
245 1 _aReport of bureau of mines research and technologic work on coal and related investigations,1955
260 _a
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_c
700 _aH. L. Riley
997 _aTR5385 C
999 _c405472
_d405472