Cita APA (7a ed.)

Drescher, S., & Engerman, S. L. (1998). A historical guide to world slavery. Oxford University Press.

Cita Chicago Style (17a ed.)

Drescher, Seymour, y Stanley L. Engerman. A Historical Guide to World Slavery. New York [etc.]: Oxford University Press, 1998.

Cita MLA (9a ed.)

Drescher, Seymour, y Stanley L. Engerman. A Historical Guide to World Slavery. Oxford University Press, 1998.