Stopher, P. R. (2012). Collecting, managing, and assessing data using sample surveys. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStopher, Peter R. Collecting, Managing, and Assessing Data Using Sample Surveys. Cambridge, [England]: Cambridge University Press, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStopher, Peter R. Collecting, Managing, and Assessing Data Using Sample Surveys. Cambridge University Press, 2012.
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