APA (7th ed.) Zitazioa

Organisation for Economic Co-operation and Development & ProQuest (Firm). (2006). Competitive cities in the global economy. OECD.

Chicago Style (17th ed.) Zitazioa

Organisation for Economic Co-operation and Development eta ProQuest (Firm). Competitive Cities in the Global Economy. Paris: OECD, 2006.

MLA (9th ed.) Zitazioa

Organisation for Economic Co-operation and Development eta ProQuest (Firm). Competitive Cities in the Global Economy. OECD, 2006.