TY  - BOOK
AU  -  James,McDivitt F.
TI  - Small-scale mining : : a guide to appropriate equipment 
U1  - 622.4 
PY  - 1990///
CY  - [s.l.]
PB  - Intermediate Technology Publications
KW  - Mining engineering
KW  - Appropriate technology.
KW  - Mining equipment
ER  -