TY  - BOOK
AU  - Trimble, Donald E.
CN  - QE75
CN  - QE75
CN  - QE71
CY  - Washington :
DA  - 1980.
ID  - 32333
KW  - Geology
N1  - Includes index.
PB  - U.S. Govt. Print. Off.,
PP  - Washington :
PY  - 1980.
T1  - The geologic story of the Great Plains :a nontechnical description of the origin and evolution of the landscape of the Great Plains /
TI  - The geologic story of the Great Plains :a nontechnical description of the origin and evolution of the landscape of the Great Plains /
VL  - 1493
ER  -