Citazione Stile APA (7a Edizione)

Zar'a Ya'qob <Aethiopien, K. (1991). The epistle of humanity. Peeters.

Citazione stile Chigago Style (17a edizione)

Zar'a Ya'qob <Aethiopien, Kaiser>. The Epistle of Humanity. Lovanii: Peeters, 1991.

Citatione MLA (8a ed.)

Zar'a Ya'qob <Aethiopien, Kaiser>. The Epistle of Humanity. Peeters, 1991.