@book{89303,
	author = {Besanko, David and Braeutigam, Ronald R.},
	title = {Microeconomics},
	publisher = {Wiley},
	year = {c2005},
	address = {Hoboken (Nueva Jersey, Estados Unidos)},
	edition = {2a. Ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0626/2005274004-t.html}
}