Heady, E. O., & Tweeten, L. G. (1963). Resource demand and structure of the agricultural industry. Ames, IA: Iowa State University Press.
Παραπομπή Chicago StyleHeady, Earl O., and Luther G. Tweeten. Resource Demand and Structure of the Agricultural Industry. Ames, IA: Iowa State University Press, 1963.
Παραπομπή MLAHeady, Earl O., and Luther G. Tweeten. Resource Demand and Structure of the Agricultural Industry. Ames, IA: Iowa State University Press, 1963.
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