Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1911)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1912)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1913)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1914)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1919)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1906)