Howe, C. Q., & Purves, D. (2005). Perceiving Geometry: Geometrical Illusions Explained by Natural Scene Statistics. Springer Science+Business Media, Inc.
Παραπομπή σε μορφή Chicago (17η εκδ.)Howe, Catherine Q., και Dale Purves. Perceiving Geometry: Geometrical Illusions Explained by Natural Scene Statistics. Boston, MA: Springer Science+Business Media, Inc, 2005.
Παραπομπή σε μορφή MLA (8th εκδ.)Howe, Catherine Q., και Dale Purves. Perceiving Geometry: Geometrical Illusions Explained by Natural Scene Statistics. Springer Science+Business Media, Inc, 2005.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.