Non-observed economy in national accounts : survey of national practices
Aspects of competition between steel and other materials
Jeunesse et population : rapport du groupe de travail de la jeunesse et de la population (Turin, 17-21 Juillet 1972)
Declaration and plan of action on industrial development and co-operation : adopted by the Second Ministerial Meeting of the Group of Seventy-Seven, Algiers, 15-18 February 1975