APA Edition Citation

Hansen, V. L. (1998). Shadows of the circle: Conic sections, optimal figures, and non-Euclidean geometry. World Scientific.

Chicago Edition Citation

Hansen, Vagn Lundsgaard. Shadows of the Circle: Conic Sections, Optimal Figures, and Non-Euclidean Geometry. Singapore ; River Edge, NJ: World Scientific, 1998.

MLA Edition Citation

Hansen, Vagn Lundsgaard. Shadows of the Circle: Conic Sections, Optimal Figures, and Non-Euclidean Geometry. World Scientific, 1998.