Cita APA (7th ed.)
Jurgensen, R. C. (1983). Geometry (New ed.). Houghton Mifflin Co..
Cita Chicago (17th ed.)
Jurgensen, Ray C. Geometry. New ed. Boston: Houghton Mifflin Co., 1983.
Cita MLA (9th ed.)
Jurgensen, Ray C. Geometry. New ed. Houghton Mifflin Co., 1983.
Atenció: Aquestes cites poden no estar 100% correctes.