Macgillavry, C. H., & Escher, M. C. (1965). Symmetry aspects of M.C. Escher's periodic drawings. Published for the International Union of Crystallography by A. Oosthoek.
Chicago Style (17th ed.) CitationMacgillavry, Caroline H., and M. C. Escher. Symmetry Aspects of M.C. Escher's Periodic Drawings. Utrecht: Published for the International Union of Crystallography by A. Oosthoek, 1965.
MLA (9th ed.) CitationMacgillavry, Caroline H., and M. C. Escher. Symmetry Aspects of M.C. Escher's Periodic Drawings. Published for the International Union of Crystallography by A. Oosthoek, 1965.
Warning: These citations may not always be 100% accurate.