Composition for Killing Grass, patent, May 22, 1906; (https://texashistory.unt.edu/ark:/67531/metapth512817/m1/1/: accessed June 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Composition for Killing Grass, patent, May 22, 1906; (https://texashistory.unt.edu/ark:/67531/metapth512817/m1/1/: accessed June 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .