TY  - BOOK
AU  - Singh,Bhawani
AU  - Goel,R. K.
TI  - ROCK MASS CLASSIFICATION
SN  - 0080430139
U1  - 624.151 
PY  - 1999///
CY  - 
PB  - Elsevier, Amsterdam
KW  - Engineering Geology
KW  - Rocks -- Classification
N1  - Includes Bibliographical References And Indexes
ER  -