Crowder, M., & Oliver, R. (1981). The Cambridge encyclopedia of Africa. Cambridge University Press.
Chicagoスタイル(17版)引用形式Crowder, Michael, , Roland Oliver. The Cambridge Encyclopedia of Africa. Cambridge, London: Cambridge University Press, 1981.
MLA(9版)引用形式Crowder, Michael, , Roland Oliver. The Cambridge Encyclopedia of Africa. Cambridge University Press, 1981.
警告: この引用は必ずしも正確ではありません.