TY  - BOOK
AU  - Keller,Edward A.
TI  - Environmental geology
SN  - 0023632704
AV  - QE 38 .K45 1992
U1  - 304.2 20
PY  - 1992///
CY  - New York
PB  - Maxwell Macmillan International
KW  - Environmental geology
N1  - Includes bibliographical references and index
ER  -