Citazione Stile APA (7a Edizione)

Askwith, E. H. (1917). A Course of Pure Geometry: The properties of the conic sections (Revised ed.). Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Askwith, Edward Harrison. A Course of Pure Geometry: The Properties of the Conic Sections. Revised ed. Cambridge: Cambridge University Press, 1917.

Citatione MLA (9a ed.)

Askwith, Edward Harrison. A Course of Pure Geometry: The Properties of the Conic Sections. Revised ed. Cambridge University Press, 1917.