United Nations. Dept. of Economic and Social Affairs. (1955). Methods of appraisal of quality of basic data for population estimates. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Dept. of Economic and Social Affairs. Methods of Appraisal of Quality of Basic Data for Population Estimates. New York: [s.n.], 1955.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Dept. of Economic and Social Affairs. Methods of Appraisal of Quality of Basic Data for Population Estimates. [s.n.], 1955.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.