APA (7th ed.) Zitazioa

Zhang, X. Q. (2011). The economic role of cities. UN-HABITAT.

Chicago Style (17th ed.) Zitazioa

Zhang, Xing Quan. The Economic Role of Cities. Nairobi: UN-HABITAT, 2011.

MLA (9th ed.) Zitazioa

Zhang, Xing Quan. The Economic Role of Cities. UN-HABITAT, 2011.