APA-referens (7:e uppl.)

(2014). Education reference guide. the editors of Salem Press. Extended learning activities & programs.

Chicago-referens (17:e uppl.)

Education Reference Guide. the Editors of Salem Press. Extended Learning Activities & Programs. 2014.

MLA-referens (9:e uppl.)

Education Reference Guide. the Editors of Salem Press. Extended Learning Activities & Programs. 2014.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.