TY  - BOOK
AU  - 
AU  - 
TI  - Small - Scale Mining : A Guide To Appropriate Equipment
SN  - 01853390127
U1  - 622.621 MCD 
PY  - 1990///
CY  - London
PB  - Intermediate Technology Pub.
KW  - Mines And Mineral Resources
KW  - Mining Engineering
N1  - Includes indexs ( p.: 99 - 100 )
ER  -