APA (7th ed.) Citation

Roberts, R. L. (1987). Warriors, merchants, and slaves: The state and the economy in the Middle Niger Valley, 1700-1914. Stanford University Press.

Chicago Style (17th ed.) Citation

Roberts, Richard L. Warriors, Merchants, and Slaves: The State and the Economy in the Middle Niger Valley, 1700-1914. Stanford, Calif.: Stanford University Press, 1987.

MLA (9th ed.) Citation

Roberts, Richard L. Warriors, Merchants, and Slaves: The State and the Economy in the Middle Niger Valley, 1700-1914. Stanford University Press, 1987.