Freeman, C., & Young, A. (1965). The research and development effort in Western Europe, North America and the Soviet Union. Paris: Organisation for Economic Co-operation and Development.
Παραπομπή Chicago StyleFreeman, C., and A. Young. The Research and Development Effort in Western Europe, North America and the Soviet Union. Paris: Organisation for Economic Co-operation and Development, 1965.
Παραπομπή MLAFreeman, C., and A. Young. The Research and Development Effort in Western Europe, North America and the Soviet Union. Paris: Organisation for Economic Co-operation and Development, 1965.
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