Παραπομπή σε μορφή APA (7η εκδ.)

Findahl, O. (1971). The effect of visual illustrations upon perception and retention of news programmes. Audience and Programme Research Dept., Sveriges Radio.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Findahl, Olle. The Effect of Visual Illustrations upon Perception and Retention of News Programmes. Sweden: Audience and Programme Research Dept., Sveriges Radio, 1971.

Παραπομπή σε μορφή MLA (8th εκδ.)

Findahl, Olle. The Effect of Visual Illustrations upon Perception and Retention of News Programmes. Audience and Programme Research Dept., Sveriges Radio, 1971.