Freeman, C. (1965). The research and development effort in western Europe, North America and the Soviet Union. Paris: OECD.
Styl ChicagoFreeman, C. The Research and Development Effort in Western Europe, North America and the Soviet Union. Paris: OECD, 1965.
Citace podle MLAFreeman, C. The Research and Development Effort in Western Europe, North America and the Soviet Union. Paris: OECD, 1965.
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