The Scope and Definition of Economics Raymond T. Bye Journal of Political Economy 1939 47(5), 623-647
Strikes: A Study in Quantitative Economics. John I. Griffin E. T. Hiller Journal of Political Economy 1939 47(6), 900-901
Scope and Method in Agricultural Economics Research T. W. Schultz Journal of Political Economy 1939 47(5), 705-717