Cita APA (7th ed.)

Riddle, D. F. (1996). Analytic geometry (Sixth edition.). Cengage Learning Asia.

Cita Chicago (17th ed.)

Riddle, Douglas F. Analytic Geometry. Sixth edition. Singapore: Cengage Learning Asia, 1996.

Cita MLA (9th ed.)

Riddle, Douglas F. Analytic Geometry. Sixth edition. Cengage Learning Asia, 1996.