Sobotka, T. (2002). Ten years of rapid fertility changes in the European post - communist countries.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSobotka, Tomas. Ten Years of Rapid Fertility Changes in the European Post - Communist Countries. 2002.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSobotka, Tomas. Ten Years of Rapid Fertility Changes in the European Post - Communist Countries. 2002.
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