Kar, J. Analytical geometry of the conic sections (5th ed.). Standard law house.
Citazione stile Chigago Style (17a edizione)Kar, J.M. Analytical Geometry of the Conic Sections. 5th ed. Delhi: Standard law house.
Citatione MLA (8a ed.)Kar, J.M. Analytical Geometry of the Conic Sections. 5th ed. Standard law house.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.