Environmental Resources Ltd, Commission of the European Communities. Directorate-General for Industrial and Technological Affairs, & Commission of the European Communities. Environment and Consumer Protection Service. (1978). Cleaning and conditioning agents: Their impact on the environment in the EEC : a report prepared for the Directorate-General for Industrial and Technological Affairs and for the Environment and Consumer Protection Services of the European Communitie. Graham & Trotman for the Commission of the European Communities.

Environmental Resources Ltd, Commission of the European Communities. Directorate-General for Industrial and Technological Affairs, agus Commission of the European Communities. Environment and Consumer Protection Service. Cleaning and Conditioning Agents: Their Impact on the Environment in the EEC : A Report Prepared for the Directorate-General for Industrial and Technological Affairs and for the Environment and Consumer Protection Services of the European Communitie. London: Graham & Trotman for the Commission of the European Communities, 1978.

Environmental Resources Ltd, et al. Cleaning and Conditioning Agents: Their Impact on the Environment in the EEC : A Report Prepared for the Directorate-General for Industrial and Technological Affairs and for the Environment and Consumer Protection Services of the European Communitie. Graham & Trotman for the Commission of the European Communities, 1978.