@book{63709,
	author = {National Research Council (U.S.). and Bass, Hyman, and ebrary, Inc.},
	title = {Measuring what counts},
	publisher = {National Academy Press,},
	year = {1993.},
	address = {Washington, DC :},
	note = {Board chairman: Hyman Bass.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10055050}
}