TY  - BOOK
AU  - Keller, A. Edward.
TI  - Introduction to environmental geology
SN  - 0131447645
AV  - QE38.K46 2005 
PY  - 2005///
CY  - New Jersey
PB  - Pearson Prentice Hall
KW  - Geology
N1  - Includes bibliographical references and index
ER  -