@book{102783,
	author = {Silver, M. S. and Heravi, Saeed. and ebrary, Inc.},
	title = {Why elementary price index number formulas differ},
	publisher = {International Monetary Fund, IMF Institute,},
	year = {2006.},
	series = {IMF working paper ;},
	address = {[Washington, D.C.] :},
	note = {"July 2006."},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10380786}
}