@book{5189,
	author = {Borjas, George J.},
	title = {Labor economics /},
	publisher = {McGraw-Hill/Irwin,},
	year = {c2005.},
	address = {Boston :},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/description/mh051/2003065010.html}
}