@book{210019,
	author = {Lacey, Nicola.},
	title = {The prisoners' dilemma},
	publisher = {Cambridge University Press},
	year = {2008.},
	series = {The Hamlyn lectures},
	address = {Cambridge, UK},
	url = {http://www.loc.gov/catdir/enhancements/fy0827/2008013707-b.html}
}