APA (7 वां संस्करण) प्रशस्ति पत्र

Walk, R. D. Visual perceptual organization: Richard D. Walk. Advances in visual semiotics : the Semiotic Web 1992 - 93.(1995).

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Walk, Richard D. "Visual Perceptual Organization: Richard D. Walk." Advances in Visual Semiotics : The Semiotic Web 1992 - 93.(1995) .

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Walk, Richard D. "Visual Perceptual Organization: Richard D. Walk." Advances in Visual Semiotics : The Semiotic Web 1992 - 93.(1995), .