APA-Zitierstil (7. Ausg.)

Margo, R. A. (2002). The North-South wage gap, before and after the civil war. National Bureau of Economic Res.

Chicago-Zitierstil (17. Ausg.)

Margo, Robert A. The North-South Wage Gap, Before and After the Civil War. Cambridge, Mass: National Bureau of Economic Res, 2002.

MLA-Zitierstil (9. Ausg.)

Margo, Robert A. The North-South Wage Gap, Before and After the Civil War. National Bureau of Economic Res, 2002.