TY  - BOOK
AU  - Melnikov, Nikolal Vasil'evich.
AU  - Chesnokov, Mitvofan Mitrofanovich.
TI  - Safety in opencast mining
U1  - 622.31 MEL 
PY  - 1969///
CY  - Moscow
PB  - Mir publishers
KW  - Strip mining
ER  -