Okigbo, P. N. C. (1965). Nigerian public finance. Northwestern University Press.
Chicagoスタイル(17版)引用形式Okigbo, P. N. C. Nigerian Public Finance. Evanston: Northwestern University Press, 1965.
MLA(8版)引用形式Okigbo, P. N. C. Nigerian Public Finance. Northwestern University Press, 1965.
警告: この引用は必ずしも正確ではありません.