TY  - BOOK
AU  - 
AU  - 
TI  - Rock Engineering Applications
SN  - 0070218897
U1  - 622.2 FRA 
PY  - 1991///
CY  - New York
PB  - McGraw-Hill
KW  - Rock Excavation
KW  - Rock Mechanics
N1  - Includes bibliographical references ( p. 421 - 424 ), indexes ( p. 425 - 431 )
ER  -