Winquist, Alan H. [Letter From Alan H. Winquist to Carlton Lundgren, May 28, 1983], letter, May 28, 1983; (https://texashistory.unt.edu/ark:/67531/metapth1220951/m1/1/: accessed July 7, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .