@book{129007,
	author = {Freeman, Richard B. and ebrary, Inc.},
	title = {Differences and changes in wage structures},
	publisher = {University of Chicago Press,},
	year = {1995.},
	series = {NBER Comparative labor markets series},
	address = {Chicago :},
	note = {"Papers ... presented at conferences held at the Center for Economic Performance (CEP) of the London School of Economics and at the NBER"--Pref.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10216980}
}