Economy of innovations in dairy farming and adjustments to increase resource returns /
Barker, Randolph,author.
Heady, Earl O.(Earl Orel),1916-1986,author.
Iowa State University.Agricultural and Home Economics Experiment Station.
Iowa State University.Department of Economics and Sociology.
Iowa State University.Center for Agricultural and Economic Adjustment.
United States.Department of Agriculture.
Title from front cover.
Includes bibliographical references.