by Waldroup P.W, Bussell W.D, Cobb A.B
Published in Arkansas Farm Research (1977)

by Cobb, A.B, Frahm, R.R, Mizell, R.H
Published in Misc Publ Okla Agric Exp Stn (1976)

by Omar, M.A, Frahm, R.R, Mizell, R.H, Cobb, A.B
Published in Miscellaneous Publication - Oklahoma Agricultural Experiment Station (USA) (01.06.1977)

by Frahm, R.R, Cobb, A.B, Gould, M.B, Mizell, R.H
Published in Misc Publ Okla Agric Exp Stn (1976)