TY  - BOOK
AU  - 
TI  - Underground Mining Methods And Technology
SN  - 0444428453
U1  - 622.2 UND 
PY  - 1987///
CY  - New York
PB  - Elsevier, 
KW  - Mining Engineering
KW  - Congresses
N1  - Proceedings of the International Symposium on Underground Mining Methods and Technology, Nottingham, England, September 8-13, 1986; Includes bibliographical references ( p.: 472 )
ER  -