TY  - BOOK
T1  - Progress of mine systems in Australia /
DA  - [1975]
CY  - [Washington] :
AU  - Schlick, Donald P.
CN  - TN295 .U58 no.1006
CN  - TN295
PB  - Mining Enforcement and Safety Administration,
PP  - [Washington] :
PY  - [1975]
ID  - 118564
KW  - Coal mines and mining
TI  - Progress of mine systems in Australia /
ER  -