TY  - BOOK
AU  - Roberts, Albert F., 1911-
TI  - Applied geotechnology : a text for students and engineers on rock excavation and related topics 
T2  - Pergamon international library of science, technology, engineering and social studies
SN  - 0080240151
AV  - TA 740 Rob 
PY  - 1981///
CY  - Oxford
PB  - Pergamon Press
KW  - ROCK EXCAVATION
KW  - ROCK MECHANICS
ER  -