Παραπομπή σε μορφή APA (7η εκδ.)

Guedes, S., Martin, J., & Wilkinson, D. (2001). Reporting on environmental measures: Are we being effective? Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Guedes, Sofia, Jock Martin, και David Wilkinson. Reporting on Environmental Measures: Are We Being Effective? Luxembourg: Office for Official Publications of the European Communities, 2001.

Παραπομπή σε μορφή MLA (8th εκδ.)

Guedes, Sofia, et al. Reporting on Environmental Measures: Are We Being Effective? Office for Official Publications of the European Communities, 2001.