TY  - GEN
AU  - Bieniawski, Z. T.
TI  - Engineering rock mass classifications : a complete manual for engineers and geologists in mining, civil, and ..
SN  - 0471601721
PY  - 1989///
CY  - New York
PB  - Wiley-Interscience
KW  - GEOLOGY, ECONOMIC
KW  - ROCKS-Classification
KW  - ROCK MECHANICS
KW  - ENVIRONMENTAL ENGINEERING
KW  - CIVIL-Mining
KW  - PETROLEUM
N1  - Bibliography, Index included
ER  -