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Plant protection and quarantine : safeguarding American agriculture, fighting invasive species, and facilitating trade
The new earth; a recital of the triumphs of modern agriculture in America
A graphic summary of American agriculture, based largely on the census of 1920
An historical sketch of the Iowa State College of Agriculture and Mechanic Arts
New farm and forest products : responses to the challenges and opportunities facing American agriculture
Extension course in vegetable foods for self-instructed classes in movable schools of agriculture
The States' role in the cooperative state-federal research system for agriculture and forestry
Impact of business climate factors on value-added activities in Illinois agriculture : a first analysis
Relation of the United States Department of agriculture to the agricultural colleges and experiment stations
Report on the introduction and distribution of seeds and plants by the Bureau of Agriculture
