Otabil, M. (1992). Beyond the rivers of Ethiopia. Altar International.
Chicagoスタイル(17版)引用形式Otabil, Mensa. Beyond the Rivers of Ethiopia. Accra: Altar International, 1992.
MLA(9版)引用形式Otabil, Mensa. Beyond the Rivers of Ethiopia. Altar International, 1992.
警告: この引用は必ずしも正確ではありません.