TY  - BOOK
AU  - Roberts,A.
TI  - Applied geotechnology: a text for students and engineers on rock excavation and related topics 
T2  - Pergamon international library
SN  - 0080240151 (hbk.)
PY  - 1981///
CY  - Oxford
PB  - Pergamon Press
KW  - Engineering geology
ER  -