Cita APA (7a ed.)

Stanley, H. M. (1893). Slavery and the slave trade in Africa. Harper.

Cita Chicago Style (17a ed.)

Stanley, Henry M. Slavery and the Slave Trade in Africa. New York: Harper, 1893.

Cita MLA (8a ed.)

Stanley, Henry M. Slavery and the Slave Trade in Africa. Harper, 1893.