TY  - BOOK
AU  - Keller,Edward A.
AU  - Burt,E.M.
TI  - Environmental geology
SN  - 0675208890
AV  - QE33.K38 1988 
PY  - 1988///
CY  - Columbus
PB  - Merrill Pub. Co.
KW  - Environmental geology
N1  - Includes bibliographies and index
ER  -