Askwith, E. H. The Analytical Geometry of the conic sections / by E. H. Askwith. - 3rd ed. - Calcutta; Radha Publishing, c 1988 [2009]. - xii, 443 p.: ISBN: ULABE01171 Subjects--Topical Terms: Analytical Geometry Geometry Dewey Class. No.: 516.3 / ASA