... Zonation of the Middle and Upper Ordovician strata in northwestern Georgia /
Allen, Arthur Thomas.
Zonation of the Middle and Upper Ordovician strata in northwestern Georgia / by Arthur T. Allen and James G. Lester ... - Altanta, 1957. - 110 p. 23 cm. - Georgia. Dept. of Mines, Mining and Geology. Bulletin no. 66 . - Georgia. Department of Mines, Mining and Geology. Bulletin no. 66. .
One map in pocket in back of book.
"Selected references": p. [107]
gs 58000152
Geology, Stratigraphic--Ordovician.
Geology--Georgia.
QE101 / .A12 no. 66
Zonation of the Middle and Upper Ordovician strata in northwestern Georgia / by Arthur T. Allen and James G. Lester ... - Altanta, 1957. - 110 p. 23 cm. - Georgia. Dept. of Mines, Mining and Geology. Bulletin no. 66 . - Georgia. Department of Mines, Mining and Geology. Bulletin no. 66. .
One map in pocket in back of book.
"Selected references": p. [107]
gs 58000152
Geology, Stratigraphic--Ordovician.
Geology--Georgia.
QE101 / .A12 no. 66