APA-viite (7. p.)
ebrary, Inc, Card, D. E., & Freeman, R. B. (1993). Small differences that matter: Labor markets and income maintenance in Canada and the United States. University of Chicago Press.
Chicago-viite (17. p.)
ebrary, Inc, David E. Card, ja Richard B. Freeman. Small Differences That Matter: Labor Markets and Income Maintenance in Canada and the United States. Chicago: University of Chicago Press, 1993.
MLA-viite (9. p.)
ebrary, Inc, et al. Small Differences That Matter: Labor Markets and Income Maintenance in Canada and the United States. University of Chicago Press, 1993.
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