APA-viite (7. p.)
Margo, R. A. (2000). Wages and labor markets in the United States, 1820-1860. University of Chicago Press.
Chicago-viite (17. p.)
Margo, Robert A. Wages and Labor Markets in the United States, 1820-1860. Chicago: University of Chicago Press, 2000.
MLA-viite (9. p.)
Margo, Robert A. Wages and Labor Markets in the United States, 1820-1860. University of Chicago Press, 2000.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.