Παραπομπή APA
Institute for European Environmental Policy., & Commission of the European Communities. (1993). EC study guide to environment-related courses. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleInstitute for European Environmental Policy., and Commission of the European Communities. EC Study Guide to Environment-related Courses. Luxembourg: Office for Official Publications of the European Communities, 1993.
Παραπομπή MLAInstitute for European Environmental Policy., and Commission of the European Communities. EC Study Guide to Environment-related Courses. Luxembourg: Office for Official Publications of the European Communities, 1993.
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