TY  - BOOK
AU  - Clarke,Otis M.
ED  - Geological Survey of Alabama.
ED  - United States.
TI  - Clay and shale of northwestern Alabama,
T2  - Geological Survey of Alabama. Circular 20B
AV  - TN942 .C55
U1  - 553/.61/09761 
PY  - 1966///
CY  - University, Ala.
PB  - Geological Survey of Alabama, Division of Economic Geology
KW  - Clay
KW  - Alabama
KW  - Shale
N1  - Prepared in cooperation with the Bureau of Mines, U.S. Dept. of the Interior; Bibliography: p. 33-34
ER  -