Regional Changes in Grain Production

Auteur : A. J. Englehorn, Alvin Charles Egbert, Ben L. Grover, Jay C. Anderson, Lee G. Burchinal, R. H. Shaw, Walter R. Butcher, Earl Orel Heady, Don Kirkham, Owen McCarthy, Perry Eugene Jacobson, William Duncan Shrader, John T. Pesek, Ray F. Brokken

Date de publication : 1963

Éditeur : Agricultural and Home Economics Experiment Station, Iowa State University of Science and Technology

Nombre de pages : 22