000 00248pam a2200109a 44500
082 _aTR
_bTPR-116
100 _aWelby G. Courtney
245 1 _aDust deposition in coal mine airways
260 _a
_b
_c
700 _aJay Colinet
997 _aTR1161 C
999 _c404748
_d404748