Hearn, G. W. (2005). Researches on curves of the second order Also on cones and spherical conics treated analytically, in which the tangencies of Apollonius are investigated, and general geometrical constructions deduced from analysis; also several of the geometric. Project Gutenberg.
Chicago Style (17th ed.) CitationHearn, George Whitehead. Researches on Curves of the Second Order Also on Cones and Spherical Conics Treated Analytically, in Which the Tangencies of Apollonius Are Investigated, and General Geometrical Constructions Deduced from Analysis; Also Several of the Geometric. Project Gutenberg, 2005.
MLA (9th ed.) CitationHearn, George Whitehead. Researches on Curves of the Second Order Also on Cones and Spherical Conics Treated Analytically, in Which the Tangencies of Apollonius Are Investigated, and General Geometrical Constructions Deduced from Analysis; Also Several of the Geometric. Project Gutenberg, 2005.