1942 · Semple, Arthur T. (Arthur Truman), 1895-, Hein, M. A. (Mason August), b. 1894, et al. · University of North Texas Digital Library (University of North Texas)
1928 · Martin, John H. (John Holmes), 1893-, Cole, John S. (John Selden), et al. · University of North Texas Digital Library (University of North Texas)
1923 · Semple, Arthur T. (Arthur Truman), 1895-, United States. Bureau of Animal Industry., et al. · University of North Texas Digital Library (University of North Texas)