000 00254pam a2200109a 44500
082 _aTR
_bIC-9235
100 _aSean Gallagher
245 1 _aReducing back injuries in low-coal mines
260 _a
_b
_c
700 _aRichard L. Unger
997 _aTR6446 C
999 _c405683
_d405683