TY  - BOOK
AU  - 
TI  - Rudiments Of Mining Practice
SN  - 0878490426
U1  - 622 GRE 
PY  - 1983///
CY  - USA
PB  - Karl Distributors
KW  - Mining Engineering
N1  - Includes indexes ( p. 137 - 141 )
ER  -