Walton, William Randolph, 1873-1952 & Davis, John J. (John June), 1885-1965. Cutworms and Their Control in Corn and Other Cereal Crops, pamphlet, 1916; (https://digital.library.unt.edu/ark:/67531/metadc85829/m1/1/: accessed November 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .