National Bureau of Economic Research. The rate and direction of inventive activity: economic and social factors: a conference of the Universities-National Bureau Committee for Economic Research and the Committee on Economic Growth of the Social Science Research Council. Princeton: Princeton University, 1962. x, 635 s. National Bureau of Economic Research. Special conference series; vol. 13.
Citace podle APA(1962). The rate and direction of inventive activity: Economic and social factors : a conference of the Universities-National Bureau Committee for Economic Research and the Committee on Economic Growth of the Social Science Research Council. Princeton: Princeton University.
Styl ChicagoThe Rate and Direction of Inventive Activity: Economic and Social Factors : A Conference of the Universities-National Bureau Committee for Economic Research and the Committee On Economic Growth of the Social Science Research Council. Princeton: Princeton University, 1962.
Citace podle MLAThe Rate and Direction of Inventive Activity: Economic and Social Factors : A Conference of the Universities-National Bureau Committee for Economic Research and the Committee On Economic Growth of the Social Science Research Council. Princeton: Princeton University, 1962.
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