APA-Zitierstil (7. Ausg.)

Percentage of Adults Who Scored at Level 3 or Above in Document Literacy. US Department of Education.

Chicago-Zitierstil (17. Ausg.)

Percentage of Adults Who Scored at Level 3 or Above in Document Literacy. US Department of Education.

MLA-Zitierstil (8. Ausg.)

Percentage of Adults Who Scored at Level 3 or Above in Document Literacy. US Department of Education.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.