TY  - BOOK
AU  - Shea-Albin, V. R.
CN  - I 28.27:
CN  - TN295
CN  - TN288
CY  - Washington, DC :
DA  - 1993.
ID  - 195544
KW  - Ground control (Mining)
KW  - Coal
N1  - Distributed to depository libraries in microfiche.
N1  - Shipping list no.: 94-0272-M.
PB  - U.S. Dept. of the Interior, Bureau of Mines,
PP  - Washington, DC :
PY  - 1993.
T1  - Geological features that contribute to ground control problems in underground coal mines
TI  - Geological features that contribute to ground control problems in underground coal mines
VL  - 9370
ER  -