United States. Geological Survey. Office of Earthquake Studies & Keller, G. R. (1980). A Seismicity and seismotectonic study of the Kermit seismic zone, Texas. The Survey.
Chicago Style (17th ed.) CitationUnited States. Geological Survey. Office of Earthquake Studies and G. Randy Keller. A Seismicity and Seismotectonic Study of the Kermit Seismic Zone, Texas. Denver, Colo.: The Survey, 1980.
MLA (9th ed.) CitationUnited States. Geological Survey. Office of Earthquake Studies and G. Randy Keller. A Seismicity and Seismotectonic Study of the Kermit Seismic Zone, Texas. The Survey, 1980.
Warning: These citations may not always be 100% accurate.