Robert Wood Johnson Foundation, April 11, 1989, letter, April 11, 1989; (https://texashistory.unt.edu/ark:/67531/metadc1051497/m1/3/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Robert Wood Johnson Foundation, April 11, 1989, letter, April 11, 1989; (https://texashistory.unt.edu/ark:/67531/metadc1051497/m1/3/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .