Bryan, A. Hugh (Albert Hugh), 1874-1920; Hudson, C. H. & Sherwood, S. F. Sorghum-Syrup Manufacture, pamphlet, 1918; (https://digital.library.unt.edu/ark:/67531/metadc85697/m1/1/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .