The unexpected hanging,
and other mathematical diversions.
APA Citation
Gardner, M. (1969). The unexpected hanging: and other mathematical diversions. New York: Simon and Schuster.
MLA Citation
Gardner, Martin, 1914-2010. The Unexpected Hanging: And Other Mathematical Diversions. New York: Simon and Schuster, 1969.
Warning: These citations may not always be complete (especially for serials).