@book{99216,
	author = {Elster, Jon, 1940-},
	title = {An introduction to Karl Marx / Jon Elster.},
	address = {Cambridge Cambridgeshire ;New York :},
	url = {http://www.loc.gov/catdir/description/cam023/86004238.html http://www.loc.gov/catdir/toc/cam029/86004238.html}
}