Cita APA (7th ed.)

Guy, R. K., & Woodrow, R. E. (1994). The lighter side of mathematics. The Mathematical Association of America.

Cita Chicago (17th ed.)

Guy, Richard K., i Robert E. Woodrow. The Lighter Side of Mathematics. Washington, D.C: The Mathematical Association of America, 1994.

Cita MLA (9th ed.)

Guy, Richard K., i Robert E. Woodrow. The Lighter Side of Mathematics. The Mathematical Association of America, 1994.