APA aipamena

(2000). Percentage of Students Scoring High in Writing Performance: 1984-96. U.S. Department of Education.

Chicago Style aipamena

Percentage of Students Scoring High in Writing Performance: 1984-96. U.S. Department of Education, 2000.

MLA aipamena

Percentage of Students Scoring High in Writing Performance: 1984-96. U.S. Department of Education, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.