Simson, O. G. v., & Levy, E. (1956). The Gothic cathedral: Origins of Gothic architecture and the medieval concept of order. New York: Pantheon Books.
Παραπομπή Chicago StyleSimson, Otto Georg von, and Ernst Levy. The Gothic Cathedral: Origins of Gothic Architecture and the Medieval Concept of Order. New York: Pantheon Books, 1956.
Παραπομπή MLASimson, Otto Georg von, and Ernst Levy. The Gothic Cathedral: Origins of Gothic Architecture and the Medieval Concept of Order. New York: Pantheon Books, 1956.
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