LeTourneau Technical Institute.LeTourneau Tech's NOW, Volume 1, Number 33, October 1947,
periodical,
October 1947;
Longview, Texas.
(https://texashistory.unt.edu/ark:/67531/metapth1526565/m1/1/:
accessed June 28, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting LeTourneau University Margaret Estes Library.