Cita APA (7a ed.)

Barbeau, E. J., Klamkin, M. S., & Moser, W. O. (1995). Five hundred: Mathematical challenges (1a ed.). Mathematical Association of America.

Cita Chicago Style (17a ed.)

Barbeau, Edward J., Murray S. Klamkin, y William O.J Moser. Five Hundred: Mathematical Challenges. 1a ed. Usa: Mathematical Association of America, 1995.

Cita MLA (9a ed.)

Barbeau, Edward J., et al. Five Hundred: Mathematical Challenges. 1a ed. Mathematical Association of America, 1995.