TY  - BOOK
AU  - 
TI  - Introductory Mining Engineering
SN  - 0471820040
U1  - 622 HAR 
PY  - 1987///
CY  - New York
PB  - John Wiley & Sons
KW  - Mining Engineering
N1  - "A Wiley-Interscience publication."
; Includes bibliographical references ( p. 591 - 617 ), indexs ( p. 621 - 633 )
ER  -