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By: United States. Department of Agriculture. States Relations Service. - Fuller, H. B. (Horace Bigelow), - United States. Office of Experiment Stations.Edition:Publication info: Washington, U.S. GPO, 1918Volume: no.34 (1918)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Agricultural extension work Agricultural extension workers Filing systems Training of United StatesBHL Collections: