TY  - BOOK
AU  - Montgomery, Carla W.,
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 0697042979 (paperback)
SN  - 2
PY  - 1989///;copyright 198946
CY  - Dubuque, Iowa
PB  - Wm.C. Brown
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Geology
N1  - Includes bibliographies and index; 5
ER  -