TY  - BOOK
AU  - Seiffert,Sidney G.
TI  - How to conduct a mine feasibility study: surface coal mines 
PY  - 1988///?]
CY  - [S.l.]
PB  - Maclean Hunter
KW  - Coal mines and mining
KW  - Strip mining
KW  - Feasibility studies
KW  - Handbooks, manuals, etc
KW  - Mineral industries
ER  -