Não informado. (1960). OECD Economic Surveys. Organization for Economic Co-operation and Development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. OECD Economic Surveys. Paris: Organization for Economic Co-operation and Development, 1960.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. OECD Economic Surveys. Organization for Economic Co-operation and Development, 1960.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.