An Economic Study of the Hog Enterprise in Humboldt County John Abel Hopkins Published: 1928 Total Pages: 48 Get eBook
An Economic Study of the Hog Enterprise in Humboldt County John A. Hopkins Published: 1930 Total Pages: 42 Get eBook
An Economic Study of the Cattle Feeding Enterprise in Iowa John Abel Hopkins Published: 1927 Total Pages: 48 Get eBook
An Economic Study of the Cattle Feeding Enterprise in Iowa John A. Hopkins Published: 1927 Total Pages: 56 Get eBook
An Economic Study of the Baby Beef Enterprise in Southern Iowa John Abel Hopkins Published: 1940 Total Pages: 58 Get eBook
Bulletin Iowa Agriculture and Home Economics Experiment Station Published: 1927 Total Pages: 838 Get eBook
Experiment Station Record United States. Office of Experiment Stations Published: 1932 Total Pages: 1154 Get eBook
