Advanced Method for the Slide Trombone, thesis, August 1941; (https://digital.library.unt.edu/ark:/67531/metadc935774/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
Advanced Method for the Slide Trombone, thesis, August 1941; (https://digital.library.unt.edu/ark:/67531/metadc935774/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .