TY  - BOOK
AU  - Popov,G.
AU  - Shiffer,V.
TI  - The Working of mineral deposits
U1  - 622.2 
PY  - 1971///
CY  - Moscow
PB  - MIR Pub
KW  - Mines and mineral resouces
KW  - Natural resources
KW  - Minerals
N1  - Includes index
ER  -