(2006). Nonresponse Bias in the 2005 National Household Education Surveys Program. U.S. Department of Education.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Nonresponse Bias in the 2005 National Household Education Surveys Program. U.S. Department of Education, 2006.
MLA -ийн эшлэл (9 дэх хэвлэлт)Nonresponse Bias in the 2005 National Household Education Surveys Program. U.S. Department of Education, 2006.
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