(2006). National Household Education Surveys Program of 2001-05 Electronic Codebook & Public-Use Data Files. U.S. Department of Education.
Chicago Style aipamenaNational Household Education Surveys Program of 2001-05 Electronic Codebook & Public-Use Data Files. U.S. Department of Education, 2006.
MLA aipamenaNational Household Education Surveys Program of 2001-05 Electronic Codebook & Public-Use Data Files. U.S. Department of Education, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.