APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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