Zar'a Ya'qob <Aethiopien, K. (1991). The epistle of humanity. Peeters.
Chicagoスタイル(17版)引用形式Zar'a Ya'qob <Aethiopien, Kaiser>. The Epistle of Humanity. Lovanii: Peeters, 1991.
MLA(8版)引用形式Zar'a Ya'qob <Aethiopien, Kaiser>. The Epistle of Humanity. Peeters, 1991.
警告: この引用は必ずしも正確ではありません.