Proceedings Of The Ninth Annual Convention Of The Association Of Official Agricultural Chemists: Held At The National Museum, Washington, D. C., August 25, 26, And 27, 1892 (Classic Reprint)
Proceedings Of The Nineteenth Annual Convention Of The Association Of Official Agricultural Chemists: Held At Washington, D. C., October 2, 3, And 4, 1902 (Classic Reprint)
Principles And Practice Of Agricultural Analysis, Vol. 3: A Manual For The Examination Of Soils, Fertilizers, And Agricultural Products; For The Use ... Agricultural Products (Classic Reprint)