1. World seismicity map compiled from E.S.S.A., Coast and Geodetic Survey, epicenter data, 1961–1967;Barazangi;Bull. Seismol. Soc. Am.,1969
2. Basement Map of North America, 1:5,000,000;Basement Rock Project Committee,1967
3. United Kingdom Contribution to the Upper Mantle Project, 1967;British National Committee for Geodesy and Geophysics;Roy. Soc. London, Progress Rept.,1967
4. Structure of Mexican continental shelf and slope, Gulf of Mexico;Bryant;Bull. Am. Assoc. Petrol. Geologists,1968
5. The fit of the continents around the Atlantic;Bullard,1965