Henderson, D. W. (2001). Experiencing geometry: In euclidean, spherical and hyperbolic spaces (2nd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Henderson, David W. Experiencing Geometry: In Euclidean, Spherical and Hyperbolic Spaces. 2nd ed. Upper Saddle River, NJ: Prentice-Hall, 2001.
Cita MLA (9th ed.)Henderson, David W. Experiencing Geometry: In Euclidean, Spherical and Hyperbolic Spaces. 2nd ed. Prentice-Hall, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.