Honsberger, R. (1970). Ingenuity in mathematics. Mathematical Association of America.
芝加哥风格引文Honsberger, Ross. Ingenuity in Mathematics. Washington, DC: Mathematical Association of America, 1970.
MLA引文Honsberger, Ross. Ingenuity in Mathematics. Mathematical Association of America, 1970.
警告：这些引文格式不一定是100％准确.