APA-referens (7:e uppl.)

Não informado. (1971). IDS Communication. University of Sussex, Institute of Development Studies.

Chicago-referens (17:e uppl.)

Não informado. IDS Communication. Brighton, Inglaterra: University of Sussex, Institute of Development Studies, 1971.

MLA-referens (8:e uppl.)

Não informado. IDS Communication. University of Sussex, Institute of Development Studies, 1971.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.