TY  - BOOK
AU  - Johnson,Robert Britten
AU  - Degraff,Jerome V.
AU  - DeGraff,J.V.
TI  - Principles of Engineering Geology 
SN  - 0471612758 (paperback)
U1  - 624.151JOH 
PY  - 1988///
CY  - New York
PB  - John Wiley and Sons 
KW  - Engineering geology	
UR  - http://www.amazon.com/exec/obidos/ASIN/0471612758/chopaconline-20
ER  -