Cita APA (7th ed.)
Wallace, E. C., & West, S. F. (1992). Roads to geometry. Prentice Hall.
Cita Chicago (17th ed.)
Wallace, Edward C., i Stephen F. West. Roads to Geometry. New Jersey: Prentice Hall, 1992.
Cita MLA (9th ed.)
Wallace, Edward C., i Stephen F. West. Roads to Geometry. Prentice Hall, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.