Haselberger, L. (1999). Appearance and essence: Refinements of classical architecture - curvature : proceedings of the Second Williams Symposium on Classical Architecture held at the University of Pennsylvania, Philadelphia, April 2-4, 1993. Philadelphia: University Museum, University of Pennsylvania.
Chicago Stili AlıntıHaselberger, Lothar. Appearance and Essence: Refinements of Classical Architecture - Curvature : Proceedings of the Second Williams Symposium On Classical Architecture Held At the University of Pennsylvania, Philadelphia, April 2-4, 1993. Philadelphia: University Museum, University of Pennsylvania, 1999.
MLA AlıntıHaselberger, Lothar. Appearance and Essence: Refinements of Classical Architecture - Curvature : Proceedings of the Second Williams Symposium On Classical Architecture Held At the University of Pennsylvania, Philadelphia, April 2-4, 1993. Philadelphia: University Museum, University of Pennsylvania, 1999.