@book{60237,
	author = {National Bureau of Economic Research (NBER)},
	title = {Industrial technology and productivity :},
	publisher = {NBER ,},
	year = {2000},
	address = {Cambridge, Massachusetts :},
	note = {Papers presented at the annual meeting of the American Economic Association, January 2000.Conference on research in income and wealth October 15-16, 1965}
}