Van der Gaag, N., Van Imhoff, E., & Van Wissen, L. (1997). Long-term internal migration scenarios for the countries of the European Union. European Commission.
Čikaški stil citiranja (17. izdanje)Van der Gaag, Nicole, Evert Van Imhoff, i Leo Van Wissen. Long-term Internal Migration Scenarios for the Countries of the European Union. Luxembourg: European Commission, 1997.
MLA način citiranja (8. izdanje)Van der Gaag, Nicole, et al. Long-term Internal Migration Scenarios for the Countries of the European Union. European Commission, 1997.
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