Greenwood, R.H.; Titgemeyer, Evan C.; Drouillard, James S.(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-08-24)
Mathis, C.P.; Cochran, R.C.; Woods, B.C.; Heldt, J.S.; Olson, K. C.; Grieger, David M.(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-08-24)