World Water Council. (2008). Creditor reporting system. Organisation for Economic Co-operation and Development.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Water Council. Creditor Reporting System. Paris: Organisation for Economic Co-operation and Development, 2008.
Παραπομπή σε μορφή MLA (9th εκδ.)World Water Council. Creditor Reporting System. Organisation for Economic Co-operation and Development, 2008.
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