000
00248pam a2200109a 44500
082
_a
TR
_b
RI-9225
100
_a
K. Y. Haramy
245
1
_a
Causes and control of coal mine bumps
260
_a
_b
_c
700
_a
J. A. Mcdonnell
997
_a
TR1155 C
999
_c
404742
_d
404742