Schumacher, L. L.; Cochrane, R. A.; Woodworth, Jason C.; Huss, A. R.; Stark, Charles R.; Jones, Cassandra K.; Chen, Q.; Main, R.; Zhang, J.; Gauger, P. C.; Dritz, Steven S.; Tokach, Michael D.
Roberts, M.N.; Getty, Kelly J. K.; Boyle, Elizabeth A. E.(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-01-22)