Leutzinger, L. P., Rathmell, E. C., & Shaw, J. M. (1989). The Random House achievement program in mathematics. Random House.
Cita Chicago (17th ed.)Leutzinger, Larry P., Edward C. Rathmell, i Jean M. Shaw. The Random House Achievement Program in Mathematics. New York: Random House, 1989.
Cita MLA (9th ed.)Leutzinger, Larry P., et al. The Random House Achievement Program in Mathematics. Random House, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.