de Jong, A. (1998). Long-term fertility scenarios for the countries of the European economic area. European Commission.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रde Jong, Andries. Long-term Fertility Scenarios for the Countries of the European Economic Area. Luxembourg: European Commission, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रde Jong, Andries. Long-term Fertility Scenarios for the Countries of the European Economic Area. European Commission, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.