(2006). 2004 National Postsecondary Student Aid Study (NPSAS: 04) Full-Scale Methodology Report. U.S. Department of Education.
Chicago Style aipamena2004 National Postsecondary Student Aid Study (NPSAS: 04) Full-Scale Methodology Report. U.S. Department of Education, 2006.
MLA aipamena2004 National Postsecondary Student Aid Study (NPSAS: 04) Full-Scale Methodology Report. U.S. Department of Education, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.