Shepard, R. N. (1990). Mind sights: Original visual illusions, ambiguities, and other anomalies ; with a commentary on the play of mind in perception and art. Freeman.
Chicago Style (17th ed.) CitationShepard, Roger N. Mind Sights: Original Visual Illusions, Ambiguities, and Other Anomalies ; with a Commentary on the Play of Mind in Perception and Art. New York: Freeman, 1990.
MLA (9th ed.) CitationShepard, Roger N. Mind Sights: Original Visual Illusions, Ambiguities, and Other Anomalies ; with a Commentary on the Play of Mind in Perception and Art. Freeman, 1990.
Warning: These citations may not always be 100% accurate.