APA aipamena

Drescher, S., & Engerman, S. L. (1998). Historical guide to World Slavery. Oxford University.

Chicago Style aipamena

Drescher, Seymour, and Slanley L. Engerman. Historical Guide to World Slavery. New York: Oxford University, 1998.

MLA aipamena

Drescher, Seymour, and Slanley L. Engerman. Historical Guide to World Slavery. Oxford University, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.