Perspectives of planning : proceedings of the O.E.C.D. Working Symposium on Long-Range Forecasting and Planning, Bellagio, Italy 27th October - 2nd November 1968 /
O.E.C.D. Working Symposium on Long-Range Forecasting and Planning(1968 :Bellagio)
Jantsch, Erich.
Paris : O.E.C.D. ; London : H.M.S.O.,
1969.
Economic policy