@book{29240,
	author = {Allen, Arthur Thomas. and Lester, James George,},
	title = {... Zonation of the Middle and Upper Ordovician strata in northwestern Georgia /},
	year = {1957.},
	series = {Georgia. Dept. of Mines, Mining and Geology. Bulletin},
	address = {Altanta,},
	note = {One map in pocket in back of book.}
}