Παραπομπή APA

(1990). Europe's cities: Community measures in urban areas. Luxembourg: Office for Official Publications of the European Communities.

Παραπομπή Chicago Style

Europe's Cities: Community Measures in Urban Areas. Luxembourg: Office for Official Publications of the European Communities, 1990.

Παραπομπή MLA

Europe's Cities: Community Measures in Urban Areas. Luxembourg: Office for Official Publications of the European Communities, 1990.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.