1. Seaman A. Knapp: schoolmaster of American agriculture Creator: Bailey, Joseph Cannon, 1899- Collection: Core Historical Literature of Agriculture Publisher: Columbia University Press, Publication Place: New York : Date: 1945 Format: Book
2. Farmers of the world: the development of agricultural extension Creator: Brunner, Edmund de Schweinitz, 1889- Collection: Core Historical Literature of Agriculture Publisher: Columbia University Press, Publication Place: New York : Date: 1945 Format: Book