Organisation for Economic Co-operation and Development, World Health Organization, ProQuest (Firm), Colombo, F., Oxley, H., & Zurn, P. (2006). Switzerland. Organisation for Economic Co-operation and Development ; World Health Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)Organisation for Economic Co-operation and Development, World Health Organization, ProQuest (Firm), Francesca Colombo, Howard Oxley, και Pascal Zurn. Switzerland. Paris : [Geneva]: Organisation for Economic Co-operation and Development ; World Health Organization, 2006.
Παραπομπή σε μορφή MLA (9th εκδ.)Organisation for Economic Co-operation and Development, et al. Switzerland. Organisation for Economic Co-operation and Development ; World Health Organization, 2006.
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