Organisation for Economic Co-operation and Development. (1989). OECD economic surveys: Belgium Luxembourg. OECD Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOrganisation for Economic Co-operation and Development. OECD Economic Surveys: Belgium Luxembourg. Paris, France: OECD Publishing, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOrganisation for Economic Co-operation and Development. OECD Economic Surveys: Belgium Luxembourg. OECD Publishing, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.