Παραπομπή APA
Beck, J. P., Krzyzanowski, M., Koffi, B., & European Commission. (1999). Tropospheric ozone in the European Union: The consolidated report. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleBeck, J. P., M. Krzyzanowski, B. Koffi, and European Commission. Tropospheric Ozone in the European Union: The Consolidated Report. Luxembourg: Office for Official Publications of the European Communities, 1999.
Παραπομπή MLABeck, J. P., M. Krzyzanowski, B. Koffi, and European Commission. Tropospheric Ozone in the European Union: The Consolidated Report. Luxembourg: Office for Official Publications of the European Communities, 1999.
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