@book{283,
	author = {Leeds, Michael and Von Allmen, Peter.},
	title = {Microeconomics /},
	publisher = {Pearson Addison-Wesley,},
	year = {c2006.},
	address = {Boston :},
	url = {http://www.loc.gov/catdir/toc/ecip0517/2005022501.html}
}