Cita APA (7th ed.)

Salmon, G. (1960). A treatise on conic sections (6a. ed.). Chelsea.

Cita Chicago (17th ed.)

Salmon, George. A Treatise on Conic Sections. 6a. ed. Nueva York: Chelsea, 1960.

Cita MLA (9th ed.)

Salmon, George. A Treatise on Conic Sections. 6a. ed. Chelsea, 1960.