TY  - BOOK
AU  - 
AU  - 
TI  - Longwall Mining
SN  - 0471868817
U1  - 622.334 PEN 
PY  - 1984///
CY  - New York
PB  - John Wiley & Sons
KW  - Longwall Mining
N1  - "A Wiley-Interscience publication."; Includes bibliographical references and indexs ( p.: 699 - 708 )
ER  -