APA (7th ed.) Citation

Litwack, L. F. (1961). North of slavery: The negro in the free states, 1790 - 1860. Univ. of Chicago Press.

Chicago Style (17th ed.) Citation

Litwack, Leon F. North of Slavery: The Negro in the Free States, 1790 - 1860. Chicago, Ill. u.a: Univ. of Chicago Press, 1961.

MLA (9th ed.) Citation

Litwack, Leon F. North of Slavery: The Negro in the Free States, 1790 - 1860. Univ. of Chicago Press, 1961.

Warning: These citations may not always be 100% accurate.