APA Citation

Gardner, M. (1987). Riddles of the Sphinx: And other mathematical puzzle tales. Washington, D.C.: Mathematical Association of America.

Chicago Style Citation

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

MLA Citation

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

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