TY  - BOOK
AU  - Keller,Edward A..
AU  - Burt,E.M..
TI  - Environmental geology / 
SN  - 0675203732
U1  - 551 
PY  - 1985///
CY  - New Delhi : 
PB  - CBS Publishers , 
KW  - ENVIRONMENTAL GEOLOGY
N1  - Includes bibliographical references, glossary and index
ER  -