APA-referens (7:e uppl.)

(2007). Supplemental Educational Services & Implementation Challenges in the Northwest Region States. Regional Educational Laboratory Program.

Chicago-referens (17:e uppl.)

Supplemental Educational Services & Implementation Challenges in the Northwest Region States. Regional Educational Laboratory Program, 2007.

MLA-referens (9:e uppl.)

Supplemental Educational Services & Implementation Challenges in the Northwest Region States. Regional Educational Laboratory Program, 2007.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.