1. Aeromagnetic anomalies in the Bonne Terre area of the southeast Missouri mining district;Allingham,1966
2. U.S. Geol. Surv. Prof. Pap.;Andreasen,1969
3. A study of the West Florida escarpment;Antoine;Gulf Coast Ass. Geol. Soc. Trans.,1968
4. Geologic structure east and south of the Keweenaw fault on the basis of geophysical evidence;Bacon,1966
5. Behrendt, J. C., , , Tectonic map of Liberia based on interpreted aeromagnetic, aeroradioactivity, and gravity surveys, , U.S. Geol. Surv. Prof. Paper., in press, 1971, .