TY  - BOOK
AU  - Montgomery, Carla W.,
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 2
PY  - 1989///46
CY  - Dubuque, Iowa
PB  - Wm. C. Brown
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Geology.;Environmental geology
KW  - sears;sears0
N1  - Includes bibliographical references and index; 5
ER  -