Παραπομπή σε μορφή APA (7η εκδ.)

European Commission. (2000). Energy, environment and sustainable development: Guide for proposers (Part 1). Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Commission. Energy, Environment and Sustainable Development: Guide for Proposers (Part 1). Luxembourg: Office for Official Publications of the European Communities, 2000.

Παραπομπή σε μορφή MLA (8th εκδ.)

European Commission. Energy, Environment and Sustainable Development: Guide for Proposers (Part 1). Office for Official Publications of the European Communities, 2000.