Council Regulation (EEC) No 3587/91 of 3 December 1991 extending into 1992 the application of Regulations (EEC) No 3831/90, (EEC) No 3832/90, (EEC) No 3833/90 and (EEC) No 3835/90 applying generalised tariff preferences for 1991 in respect of certain products originating in developing countries : 9 languages - European Commission. (Office for Official Publications of the European Communities, 1997)