Organisation for Economic Co-operation and Development. (2002). Purchasing power parities and real expenditures: 1999 benchmark year = Parites de pouvoir d'achat et depenses reelles : annee de reference 1999. OECD.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOrganisation for Economic Co-operation and Development. Purchasing Power Parities and Real Expenditures: 1999 Benchmark Year = Parites De Pouvoir D'achat Et Depenses Reelles : Annee De Reference 1999. Paris, France: OECD, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOrganisation for Economic Co-operation and Development. Purchasing Power Parities and Real Expenditures: 1999 Benchmark Year = Parites De Pouvoir D'achat Et Depenses Reelles : Annee De Reference 1999. OECD, 2002.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.