Ball, W. W. R. (1892). Mathematical recreations and problems: Of past and present times (2. ed.). Macmillan.
Chicago Style (17th ed.) CitationBall, W. W. Rouse. Mathematical Recreations and Problems: Of Past and Present Times. 2. ed. London [u.a.]: Macmillan, 1892.
MLA (9th ed.) CitationBall, W. W. Rouse. Mathematical Recreations and Problems: Of Past and Present Times. 2. ed. Macmillan, 1892.
Warning: These citations may not always be 100% accurate.