TY  - BOOK
AU  - Clement,George K.
ED  - United States. Bureau of Mines.
TI  - Capital and operating cost estimating system manual for mining and beneficiation of metallic and nonmetallic minerals except fossil fuels in the United States and Canada
PY  - 1980///
CY  - [Pitsbourgh, PA.]
PB  - Bureau of Mines, United Statea Department of the Interior
KW  - Mineral industries
KW  - United States
KW  - Costs
KW  - Canada
ER  -