Graham, Benjamin; Hirsch, Julius; Evans, W. Duane - In: The American economic review 37 (1947) 2, pp. 421-422
Graham, Benjamin: National productivity: Its relationship to unemployment-in-prosperity. S. 384-396 …Hirsch, Julius: Productivity in war and peace. S. 397-411 …Evans, W. Duane: Productivity and human relations. S. 412-420 …
