APA-ийн эшлэл(7 дахь хэвлэлт)

Margo, R. A. (2000). Wages and labor markets in the United States, 1820-1860. University of Chicago Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Margo, Robert A. Wages and Labor Markets in the United States, 1820-1860. Chicago: University of Chicago Press, 2000.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Margo, Robert A. Wages and Labor Markets in the United States, 1820-1860. University of Chicago Press, 2000.