European Commission : Directorate-General for Economic and Financial Affairs. (1984). Some aspects of industrial productive performance in the European Community: An appraisal. Profitability, relative factor prices and capital/ labour substitution in the Community, the United States and Japan, 1960-83. Convergence and coordination of macroeconomic policies: some basic issues. Luxembourg: Office for Official Publications of the European Communities.

European Commission : Directorate-General for Economic and Financial Affairs. Some Aspects of Industrial Productive Performance in the European Community: An Appraisal. Profitability, Relative Factor Prices and Capital/ Labour Substitution in the Community, the United States and Japan, 1960-83. Convergence and Coordination of Macroeconomic Policies: Some Basic Issues. Luxembourg: Office for Official Publications of the European Communities, 1984.

European Commission : Directorate-General for Economic and Financial Affairs. Some Aspects of Industrial Productive Performance in the European Community: An Appraisal. Profitability, Relative Factor Prices and Capital/ Labour Substitution in the Community, the United States and Japan, 1960-83. Convergence and Coordination of Macroeconomic Policies: Some Basic Issues. Luxembourg: Office for Official Publications of the European Communities, 1984.