SpringerLink (Online service), Lombaerde, P. D., & Puri, L. (2009). Aid for Trade: Global and Regional Perspectives: 2007 World Report on Regional Integration. Springer Netherlands.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Philippe De Lombaerde, και Lakshmi Puri. Aid for Trade: Global and Regional Perspectives: 2007 World Report on Regional Integration. Dordrecht: Springer Netherlands, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Aid for Trade: Global and Regional Perspectives: 2007 World Report on Regional Integration. Springer Netherlands, 2009.
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