Work of the Seed Testing Laboratory from 1918 to 1923, with Notes on Seed Quality, Seed Testing, Seed Law Compliance, and Trade Practices
U. P. Hedrick, Roscoe Wilfred Thatcher, Fred Carlton Stewart, Mancel Thornton Munn, Fred Elmer Gladwin, Edward E. Clayton, Guy Franklin MacLeod, Harold Bradford Tukey, Reginald Clifton Collison
