Otabil, M. (1992). Beyond the rivers of Ethiopia. Altar International.
芝加哥风格引文Otabil, Mensa. Beyond the Rivers of Ethiopia. Accra: Altar International, 1992.
MLA引文Otabil, Mensa. Beyond the Rivers of Ethiopia. Altar International, 1992.
警告：这些引文格式不一定是100％准确.