Παραπομπή σε μορφή APA (7η εκδ.)

Schattschneider, D. (1990). Visions of symmetry: Notebooks, periodic drawings, and related work of M. C. Escher. W. H. Freeman and Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Schattschneider, Doris. Visions of Symmetry: Notebooks, Periodic Drawings, and Related Work of M. C. Escher. New York: W. H. Freeman and Company, 1990.

Παραπομπή σε μορφή MLA (8th εκδ.)

Schattschneider, Doris. Visions of Symmetry: Notebooks, Periodic Drawings, and Related Work of M. C. Escher. W. H. Freeman and Company, 1990.