Organisation for Economic Co-Operation and Development, & Jantsch, E. (1969). Perspectives of planning: Proceedings of the OECD Working Symposium on Long-Range Forecasting and Planning , Bellagio, Italy 27th October-2nd November 1968. Paris: O.E.C.D.
Παραπομπή Chicago StyleOrganisation for Economic Co-Operation and Development, and Erich Jantsch. Perspectives of Planning: Proceedings of the OECD Working Symposium On Long-Range Forecasting and Planning , Bellagio, Italy 27th October-2nd November 1968. Paris: O.E.C.D, 1969.
Παραπομπή MLAOrganisation for Economic Co-Operation and Development, and Erich Jantsch. Perspectives of Planning: Proceedings of the OECD Working Symposium On Long-Range Forecasting and Planning , Bellagio, Italy 27th October-2nd November 1968. Paris: O.E.C.D, 1969.