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Arthur Benjamin Conner, David Thornton Killough, George Lemuel Crawford, George Stronach Fraps, Harris Bradley Parks, Henry Jonathan Reinhard, John McKinley Jones, Letcher P. Gabbard, Roy Harrison Stansel, William Bradford Lanham · Yayınevi bilinmiyor
726 sayfa · 1927
Bee culture
Joseph Bridgeo Lindsey, Arao Itano, Charles Edward Marshall, Hubert Dana Goodale, Jacob Kingsley Shaw, Paul Johnson Anderson, Stuart Cunningham Vinal, William Swift Regan, Carlos Loring Beals, D. J. Caffrey, Egerton Gibson Hood, John B. Norton · Yayınevi bilinmiyor
782 sayfa · 1918
Alfalfa as feed
Alvin Broerman, Charles Henry Hunt, Charles Wesley Hauck, Donald Comin, Francis Lewis Morison, James Sheldon Shoemaker, John F. Dowler, Leighton George Foster, Lloyd Evans Thatcher, Ohio Agricultural Experiment Station · Yayınevi bilinmiyor
664 sayfa · 1927
Agricultural experiment stations