Originally published: as 'The unexpected hanging, and other mathematical diversions', New York : Simon and Schuster, 1969 ; and as 'Further mathematical diversions', London : Allen and Unwin, 1970.
Further mathematical diversions : the paradox of the unexpected hanging and others by Martin Gardner. ISBN 0047930241. Published by Allen and Unwin in 1975. Publication and catalogue information, links to buy online and reader comments.