Schultz, Theodore W.; Johnson, D. Gale; Wilcox, Walter W. - In: Journal of farm economics 45 (1963) 2, pp. 331-358
Houthakker, H. S.: Discussion: principles of economic policy, consistent and inconsistent: economics of our present …Tolley, G. S. Discussion: principles of economic policy, consistent and inconsistent economics of our present farm …