Donald C. Beitz, Louise A. Berner, Louise A. Berner, Gerald F. Combs, R. Gaurth Hansen, Richard T. Lovell, Richard L. Willham, Carol T. Windham (Autor/a)
Stanley E. Curtis, Frank H. Baker, Jake W. Looney, Paul B. Siegel, Paul B. Thompson, Jack L. Albright, James V. Craig, Temple Grandin, Harold D. Guither, John J. McGlone, James D. McKean, Gerald L. Riskowski, W. Ray Stricklin, Carolyn L. Stull (Autor/a)
