EElectric water heaters for poultryElectric water heaters for poultryde George W. KableMateriasPoultryFeeding and feedsElectric water heatersWatering troughsEdiciones (1)Electric water heaters for poultry (1927)Oregon Agricultural College, Experiment Station · inglésMás obras de George W. KableEElectric lights for increasing egg productionElectric lights for increasing egg productionRReport on farm electrification researchReport on farm electrification researchVer todas las obras de George W. Kable →