European Commission. (1999). What do Europeans think about the environment: The main results of the survey carried out in the context of Eurobarometer 51.1. Luxembourg: Office for Official Publications of the European Communities.

European Commission. What Do Europeans Think About the Environment: The Main Results of the Survey Carried Out in the Context of Eurobarometer 51.1. Luxembourg: Office for Official Publications of the European Communities, 1999.

European Commission. What Do Europeans Think About the Environment: The Main Results of the Survey Carried Out in the Context of Eurobarometer 51.1. Luxembourg: Office for Official Publications of the European Communities, 1999.