Cita APA (7th ed.)

Purcell, E. J. (1958). Analytic geometry. Crofts.

Cita Chicago (17th ed.)

Purcell, Edwin Joseph. Analytic Geometry. New York, Appleton-Century-: Crofts, 1958.

Cita MLA (9th ed.)

Purcell, Edwin Joseph. Analytic Geometry. Crofts, 1958.