000 00279pam a2200109a 44500
082 _aTR
_bIC-9253
100 _aF. M. Jenkins
245 1 _aReview of single-entry longwall mining technology in the united states
260 _a
_b
_c
700 _aE. T. Cullen
997 _aTR6963 C
999 _c406077
_d406077