Ashenfelter, O. C., & Card, D. (1986). Why have unemployment rates in Canada and the United States diverged? The London School of Economics and Political Science.
Chicago Style (17th ed.) CitationAshenfelter, Orley C., and David Card. Why Have Unemployment Rates in Canada and the United States Diverged? London: The London School of Economics and Political Science, 1986.
MLA (9th ed.) CitationAshenfelter, Orley C., and David Card. Why Have Unemployment Rates in Canada and the United States Diverged? The London School of Economics and Political Science, 1986.