TY  - BOOK
AU  - Katell S
AU  -  Hemingway E L
AU  - United Nation Mines (Bureau of-)
ED  - United Nation Mines (Bureau of-)
TI  - Basic estmated capital investment and operating cost for coal strip mines
T2  - U.S National Technical Information Service
U1  - X9(F551):26.73.N7, L4/GD 
PY  - 1974///
CY  - Washington
PB  - Govt Printer USA        
KW  -  Capital Investment
KW  -  Operating Cost
KW  - Coal  Industry
ER  -