Lansing, J. B., Ginsburg, G. P., & Braaten, K. (1961). An investigation of response error. Bureau of Economic and Business Research, University of Illinois.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLansing, John B., Gerald P. Ginsburg, और Kaisa Braaten. An Investigation of Response Error. Urbana: Bureau of Economic and Business Research, University of Illinois, 1961.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLansing, John B., et al. An Investigation of Response Error. Bureau of Economic and Business Research, University of Illinois, 1961.
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