[Lab materials on pegboard], photograph, [2010-05-25..2010-05-27]; (https://texashistory.unt.edu/ark:/67531/metadc1282099/m1/1/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Lab materials on pegboard], photograph, [2010-05-25..2010-05-27]; (https://texashistory.unt.edu/ark:/67531/metadc1282099/m1/1/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .