@book{29876,
	author = {Simpson, Thomas A and Geological Survey (U.S.)},
	title = {Structural geology of the Birmingham red iron ore district, Alabama,},
	publisher = {Geological Survey of ALabama,},
	year = {1963.},
	series = {Alabama. Geological Survey. Circular 21},
	address = {University, Ala.,},
	note = {Prepared by the U. S. Geological Survey in cooperation with the Geological Survey of Alabama.}
}