Biodun Adediran. (1994). The Frontier States of Western Yorubaland. IFRA-Nigeria.
Chicagoスタイル(17版)引用形式Biodun Adediran. The Frontier States of Western Yorubaland. IFRA-Nigeria, 1994.
MLA(9版)引用形式Biodun Adediran. The Frontier States of Western Yorubaland. IFRA-Nigeria, 1994.
警告: この引用は必ずしも正確ではありません.