Honsberger, R. (1997). In Polya's footsteps: Miscellaneous problems and essays. Mathematical Association of America.
Chicago Edition CitationHonsberger, Ross. In Polya's Footsteps: Miscellaneous Problems and Essays. America: Mathematical Association of America, 1997.
Cita MLAHonsberger, Ross. In Polya's Footsteps: Miscellaneous Problems and Essays. Mathematical Association of America, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.