TY  - BOOK
AU  - Rahn,Perry H.
TI  - Engineering geology: an environmental approach 
SN  - 0444009426
AV  - TA705 .R28 1986
U1  - 624.1/51�19 
PY  - 1986///
CY  - New York
PB  - Elsevier
KW  - Engineering geology
ER  -