1. Volcanic history of the Great Rift, Craters of the Moon National Monument, south-central Idaho;Bullard;Geol. Soc. Am. Abstr. Programs,1971
2. Bullard, F. M., , Volcanoes of the Earth, University of Texas Press, Austin, 1976,
3. The relationship of large scale surface morphology to lava flow direction, Wapi lava field, southeastern Idaho;Champion,1973
4. Observations of actively forming lava tubes and associated structures, Hawaii;Greeley;Mod. Geol.,1971
5. Additional observations on actively forming lava tubes and associated structures, Hawaii;Greeley;Mod. Geol.,1972