TY  - BOOK
AU  - Hartman,Howard L.
TI  - Introductory mining engineering
SN  - 0471820040
U1  - 622 19
PY  - 1987///
CY  - New York
PB  - Wiley
KW  - Mining engineering
N1  - "A Wiley-Interscience publication."; Includes index; Bibliography: pages 591-617
ER  -