APA সাইটেশন

Westermann, D., Smith, E. W., & Forde, D. (1928). Africa. London: Oxford University Press.

শিকাগো স্টাইলে সাইটেশন

Westermann, Diedrich, Edwin William Smith, and Daryll Forde. Africa. London: Oxford University Press, 1928.

এমএলএ সাইটেশন

Westermann, Diedrich, Edwin William Smith, and Daryll Forde. Africa. London: Oxford University Press, 1928.