Kar, J. Analytical geometry of the conic sections (5th ed.). Standard law house.
Lua i Stíl Chicago (17ú heag.)Kar, J.M. Analytical Geometry of the Conic Sections. 5th ed. Delhi: Standard law house.
Lua MLA (8ú heag.)Kar, J.M. Analytical Geometry of the Conic Sections. 5th ed. Standard law house.
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