TY  - BOOK
AU  -  Ries,Heinrich
AU  -  Watson,Thomas Leonard
TI  -  Elements of engineering geology / 
U1  -  553 RIE 
PY  - 1930///
CY  -  New York : 
PB  -  J. Wiley & sons, inc., 
KW  -  Geology, Economic
ER  -