Cita APA (7th ed.)

Dudley, U. (1992). Mathematical cranks. The Mathematical Association of America.

Cita Chicago (17th ed.)

Dudley, Underwood. Mathematical Cranks. Washington, D.C: The Mathematical Association of America, 1992.

Cita MLA (9th ed.)

Dudley, Underwood. Mathematical Cranks. The Mathematical Association of America, 1992.