1. Range sheep and wool in the seventeen western states Creator: Hultz, Fred S. 1893-1961. Collection: Core Historical Literature of Agriculture Publisher: John Wiley & Sons, Publication Place: New York : Date: 1931 Format: Book
2. The great plains Creator: Webb, Walter Prescott, 1888-1963. Collection: Core Historical Literature of Agriculture Publisher: Ginn and Co., Publication Place: [Boston] : Date: 1931 Format: Book