Bell, E. T. (1990). The last problem / introduction and notes by Underwood Dudley (Rev. ed.). Mathematical Association of America.
Chicago Style (17th ed.) CitationBell, E. T. The Last Problem / Introduction and Notes by Underwood Dudley. Rev. ed. [s.l.]: Mathematical Association of America, 1990.
MLA (9th ed.) CitationBell, E. T. The Last Problem / Introduction and Notes by Underwood Dudley. Rev. ed. Mathematical Association of America, 1990.
Warning: These citations may not always be 100% accurate.