Pork Production on Irrigated Lands in Western Nebraska: Volumes 153-159
Dan T. Gray · Horace Clyde Filley · Howard John Gramlich · Myron Harmon Swenk · James A. Holden · James Cowan · John Ralph Cooper · University of Nebraska (Lincoln campus). Agricultural Experiment Station · W. P. Snyder · W. F. Ward
ጃን 1915 · University of Nebraska, Agricultural Experiment Station of Nebraska