Cita APA

Gardner, M. (1987). Riddles of the sphinx and other mathematical puzzle tales. Mathematical Association of America.

Citación estilo Chicago

Gardner, Martin. Riddles of the Sphinx and Other Mathematical Puzzle Tales. Washington, D.C.: Mathematical Association of America, 1987.

Cita MLA

Gardner, Martin. Riddles of the Sphinx and Other Mathematical Puzzle Tales. Mathematical Association of America, 1987.

Warning: These citations may not always be 100% accurate.