TY  - SER
AU  - Allen, A. W.
TI  - Clay : : its relation to Ore Dressing and Cyaniding operations
T2  - Bulletin of the Institution of Mining and Metallurgy,  ; 
PY  - 1915///
CY  - Londres-XXK : 
PB  - The Institution of Mining and Metallurgy, 
ER  -