1. 1. National Board for Prices and Incomes, Payments by Results Systems, Report No. 65 and Supplement, H. M. S. O., London, p. 11.
2. Wage Rates, Earnings and Wage Drift;Gillon;National Institute Economic Review,1968
3. The Wages Structure and some Implications for Incomes Policy;Dicks-Mireaux;National Institute Economic Review,1962
4. 4. Royal Commission on Trade Unions and Employers Associations 1965-1968, Cmnd. 3623, H. M. S. O., London, 1968.
5. 5. Donovan Commission, op. cit. para. 67, p. 18.