Cita APA (7a ed.)

Northrup, D. (1994). The Atlantic slave trade. D.C. Heath.

Cita Chicago Style (17a ed.)

Northrup, David. The Atlantic Slave Trade. Lexington, Mass [u.a.]: D.C. Heath, 1994.

Cita MLA (9a ed.)

Northrup, David. The Atlantic Slave Trade. D.C. Heath, 1994.