Dudley, U. (1992). Mathematical cranks. The Mathematical Association of America.
芝加哥风格引文Dudley, Underwood. Mathematical Cranks. Washington, D.C: The Mathematical Association of America, 1992.
MLA引文Dudley, Underwood. Mathematical Cranks. The Mathematical Association of America, 1992.
警告：这些引文格式不一定是100％准确.