Cita APA (7a ed.)

Ball, W. W., & Coxeter, H. S. M. (1974). Mathematical Recreations & Essays: Twelfth Edition. University of Toronto Press.

Cita Chicago Style (17a ed.)

Ball, W. W., y H. S. M. Coxeter. Mathematical Recreations & Essays: Twelfth Edition. Toronto: University of Toronto Press, 1974.

Cita MLA (8a ed.)

Ball, W. W., y H. S. M. Coxeter. Mathematical Recreations & Essays: Twelfth Edition. University of Toronto Press, 1974.