Sonesson, G. On pictorality: The impact of the perceptual model in the development of pictorial semiotics / Göran Sonesson. Advances in visual semiotics : the Semiotic Web 1992 - 93.(1995).
Chicago-viite (17. p.)Sonesson, Göran. "On Pictorality: The Impact of the Perceptual Model in the Development of Pictorial Semiotics / Göran Sonesson." Advances in Visual Semiotics : The Semiotic Web 1992 - 93.(1995) .
MLA-viite (8. p.)Sonesson, Göran. "On Pictorality: The Impact of the Perceptual Model in the Development of Pictorial Semiotics / Göran Sonesson." Advances in Visual Semiotics : The Semiotic Web 1992 - 93.(1995), .
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.