DUNN, A. (1964). Mathematical bafflers: A collection of the best puzzles.... McGraw-Hill.
Cita Chicago (17th ed.)DUNN, Angela. Mathematical Bafflers: A Collection of the Best Puzzles.... New York: McGraw-Hill, 1964.
Cita MLA (9th ed.)DUNN, Angela. Mathematical Bafflers: A Collection of the Best Puzzles.... McGraw-Hill, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.