Style de citation APA (7e éd.)

Kolchin, P. (1987). Unfree labor: American slavery and Russian serfdom. Belknap Press of Harvard University Press.

Style de citation Chicago (17e éd.)

Kolchin, Peter. Unfree Labor: American Slavery and Russian Serfdom. Cambridge, MA: Belknap Press of Harvard University Press, 1987.

Style de citation MLA (9e éd.)

Kolchin, Peter. Unfree Labor: American Slavery and Russian Serfdom. Belknap Press of Harvard University Press, 1987.