Jurgensen, R. C., Brown, R. G., & Jurgensen, J. W. (2000). Geometry. McDougal Littell.
Cita Chicago (17th ed.)Jurgensen, Ray C., Richard G. Brown, i John W. Jurgensen. Geometry. Evanston, Ill: McDougal Littell, 2000.
Cita MLA (9th ed.)Jurgensen, Ray C., et al. Geometry. McDougal Littell, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.