Clay and shale of northeastern Alabama,
Clarke, Otis M.
Clay and shale of northeastern Alabama, by Otis M. Clarke, Jr. - University, Ala., 1968. - 99 p. illus., maps (part col., 1 fold. in pocket) 23 cm. - Geological Survey of Alabama. Circular 20-C . - Circular (Geological Survey of Alabama) ; 20-C. .
Prepared in cooperation with U.S. Bureau of Mines.
Bibliography: p. 37-39.
gs 68000280 //r84
Clay--Alabama.
Shale--Alabama.
QE471 / .C569
552/.5
Clay and shale of northeastern Alabama, by Otis M. Clarke, Jr. - University, Ala., 1968. - 99 p. illus., maps (part col., 1 fold. in pocket) 23 cm. - Geological Survey of Alabama. Circular 20-C . - Circular (Geological Survey of Alabama) ; 20-C. .
Prepared in cooperation with U.S. Bureau of Mines.
Bibliography: p. 37-39.
gs 68000280 //r84
Clay--Alabama.
Shale--Alabama.
QE471 / .C569
552/.5