Citação APA (7ª ed.)
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.
Citação do estilo Chicago (17ª ed.)
ebrary, Inc, David E. Card, e Richard B. Freeman. Small Differences That Matter: Labor Markets and Income Maintenance in Canada and the United States. Chicago: University of Chicago Press, 1993.
Citação MLA (9ª ed.)
ebrary, Inc, et al. Small Differences That Matter: Labor Markets and Income Maintenance in Canada and the United States. University of Chicago Press, 1993.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.