Cita APA (7a ed.)

Finkelman, P. (1989). Free blacks in a slave society. Articles on American slavery.

Cita Chicago Style (17a ed.)

Finkelman, Paul. "Free Blacks in a Slave Society." Articles on American Slavery 1989.

Cita MLA (9a ed.)

Finkelman, Paul. "Free Blacks in a Slave Society." Articles on American Slavery, 1989.