Petroleum and Natural Gas Fields in Wyoming, report, 1960; (https://digital.library.unt.edu/ark:/67531/metadc38797/m1/90/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
Petroleum and Natural Gas Fields in Wyoming, report, 1960; (https://digital.library.unt.edu/ark:/67531/metadc38797/m1/90/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .