TY  - BOOK
TI  - Opencast mining, quarrying and alluvial mining : proceedings of a symposium organised by the institution of mining and metallurgy, in co-operation with the institution of mining engineers and the institute of quarrying
U1  - 622 
PY  - 1965///.
CY  - London : 
PB  - The Institute of mining and metallurgy, 
KW  - Mining engineering - Symposium
ER  -