Perspectives of planning : proceedings of the OECD working symposium on long-range forecasting and planning Bellagio, Italy 27th October-2nd November 1968 - Symposium on long-range fore casting and planning (1968: Bellagio, Italy); Jantsch, Erich (Paris : Organisation For Economic Co-Operation and Development, 1969)
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Keywords: Technological forecasting -- Congresses