Schacht, J. P., McLennan, R. L., & Griswold, A. L. (1962). Contemporary geometry. Rinehart and Winston.
Cita Chicago (17th ed.)Schacht, John P., R L. McLennan, i Alice L. Griswold. Contemporary Geometry. New York: Rinehart and Winston, 1962.
Cita MLA (9th ed.)Schacht, John P., et al. Contemporary Geometry. Rinehart and Winston, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.