Simson, O. G. v. (1956). The Gothic cathedral: Origins of Gothic architecture and the medieval concept of order. Pantheon Books.
Chicago Style (17th ed.) CitationSimson, Otto Georg von. The Gothic Cathedral: Origins of Gothic Architecture and the Medieval Concept of Order. [New York]: Pantheon Books, 1956.
MLA (9th ed.) CitationSimson, Otto Georg von. The Gothic Cathedral: Origins of Gothic Architecture and the Medieval Concept of Order. Pantheon Books, 1956.
Warning: These citations may not always be 100% accurate.