Zhang, X. Q. (2011). The economic role of cities. UN-HABITAT.
Chicago-čujuhus (17. p.)Zhang, Xing Quan. The Economic Role of Cities. Nairobi: UN-HABITAT, 2011.
MLA-čujuhus (9. p.)Zhang, Xing Quan. The Economic Role of Cities. UN-HABITAT, 2011.
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