Findahl, O. (1971). The effect of visual illustrations upon perception and retention of news programmes. Audience and Programme Research Dept., Sveriges Radio.
Chicago-referens (17:e uppl.)Findahl, Olle. The Effect of Visual Illustrations upon Perception and Retention of News Programmes. Sweden: Audience and Programme Research Dept., Sveriges Radio, 1971.
MLA-referens (8:e uppl.)Findahl, Olle. The Effect of Visual Illustrations upon Perception and Retention of News Programmes. Audience and Programme Research Dept., Sveriges Radio, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.