(2000). International Comparisons of Student Performance in Mathematics & Science. U.S. Department of Education.
Chicago Style aipamenaInternational Comparisons of Student Performance in Mathematics & Science. U.S. Department of Education, 2000.
MLA aipamenaInternational Comparisons of Student Performance in Mathematics & Science. U.S. Department of Education, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.