000
00278pam a2200109a 44500
082
_a
TR
_b
IC-9248
100
_a
Edward F. Divers
245
1
_a
Dust control in coal preparation and mineral processing plants
260
_a
_b
_c
700
_a
Andrew B. Cecala
997
_a
TR6458 C
999
_c
405693
_d
405693