Zhang, W. (1989). Theory of economic development: Nonlinearity, instability and non-equilibrium. University of Umeå.
Chicago-referens (17:e uppl.)Zhang, Wei-Bin. Theory of Economic Development: Nonlinearity, Instability and Non-equilibrium. Umeå: University of Umeå, 1989.
MLA-referens (8:e uppl.)Zhang, Wei-Bin. Theory of Economic Development: Nonlinearity, Instability and Non-equilibrium. University of Umeå, 1989.
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