TY  - BOOK
AU  - Johnson R.B.
AU  - Degraff J.V.
TI  - Principles of Engineering Geology
SN  - 0000018576
U1  - 551 
PY  - 1988///
CY  - New york
PB  - J W & Sons
KW  - Engineering  Geology  Principles
KW  - Geology, hydrology, meteorology(551)
ER  -