United States Earthquakes, 1934, report, 1934; (https://digital.library.unt.edu/ark:/67531/metadc40327/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
United States Earthquakes, 1934, report, 1934; (https://digital.library.unt.edu/ark:/67531/metadc40327/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .