TY  - BOOK
AU  - Thomas, L. J. 
TI  - An Introduction to mining : : exploration, feasibility, extraction, rock mechanics
SN  - 0454000871
PY  - 1978///
CY  - North Ryde 
PB  - Methuen of Australia 
KW  - MINING ENGINEERING
KW  - PROSPECTING
KW  - ROCK MECHANICS
ER  -