TY  - BOOK
AU  - Sohl, Norman F.
AU  - Wright, W. B.
CN  - QE75
CN  - QE75
CY  - Washington :
DA  - 1977.
ID  - 121916
KW  - Geology, Stratigraphic
KW  - Geology
PB  - Dept. of the Interior, Geological Survey : for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
PP  - Washington :
PY  - 1977.
T1  - Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1976 /
TI  - Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1976 /
ER  -