APA Edition Citation

Askwith, E. H. (1961). Analytical geometry of the conic sections (23.).

Chicago Edition Citation

Askwith, E H. Analytical Geometry of the Conic Sections. 23. Adam & Charles Black, London, 1961.

MLA Edition Citation

Askwith, E H. Analytical Geometry of the Conic Sections. 23. 1961.