APA-referens (7:e uppl.)

Percentage of Public School Districts with Consideration of Teachers. US Department of Education.

Chicago-referens (17:e uppl.)

Percentage of Public School Districts with Consideration of Teachers. US Department of Education.

MLA-referens (9:e uppl.)

Percentage of Public School Districts with Consideration of Teachers. US Department of Education.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.