GGrain drying at a country elevatorGrain drying at a country elevatorde W. M. HurstMateriasEquipment and suppliesDryingGrainGrain elevatorsEdiciones (1)Grain drying at a country elevator (1930)U.S. Dept. of Agriculture · inglésMás obras de W. M. HurstPower and machinery in agriculture1933Removing smut balls from seed wheatBarrel and desk seed scarifiers
