@book{50408,
	author = {Kravis, Irving B. and United Nations International Comparison Project.},
	title = {A System of international comparisons of gross product and purchasing power /},
	publisher = {Published for World Bank by Johns Hopkins University Press,},
	year = {[1975]},
	address = {Baltimore :},
	note = {At head of title: United Nations International Comparison Project: phase one.}
}