APA引文

Litwack, L. F. (1961). North of slavery: The Negro in the free States, 1790-1860. University of Chicago Press.

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.