Varietal experiments with spring wheat on the northern great plains
Clark, J. Allen, Martin, John H., Smith, Ralph W.
Varietal experiments with spring wheat on the northern great plains - Washington 1920 - 1-48 p. - Experiments, Wheat United States Department of Agriculture. Department Bulletin No. 878 .
Varietal experiments with spring wheat on the northern great plains - Washington 1920 - 1-48 p. - Experiments, Wheat United States Department of Agriculture. Department Bulletin No. 878 .