Organisation for Economic Co-operation and Development. Statistics Directorate. (2000). Services =: Services : Statistics on value added and employment = Statistiques sur la valeur ajoutée et l'emploi. Organisation for Economic Co-operation and Development.
Παραπομπή σε μορφή Chicago (17η εκδ.)Organisation for Economic Co-operation and Development. Statistics Directorate. Services =: Services : Statistics on Value Added and Employment = Statistiques Sur La Valeur Ajoutée Et L'emploi. Paris: Organisation for Economic Co-operation and Development, 2000.
Παραπομπή σε μορφή MLA (8th εκδ.)Organisation for Economic Co-operation and Development. Statistics Directorate. Services =: Services : Statistics on Value Added and Employment = Statistiques Sur La Valeur Ajoutée Et L'emploi. Organisation for Economic Co-operation and Development, 2000.