APA-ийн эшлэл(7 дахь хэвлэлт)

Ṭabarī, 8., & Humphreys, R. S. (1990). The crisis of the early caliphate. State University of New York Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Ṭabarī, 838?-923, ба R. Stephen Humphreys. The Crisis of the Early Caliphate. Albany, N.Y.: State University of New York Press, 1990.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Ṭabarī, 838?-923, ба R. Stephen Humphreys. The Crisis of the Early Caliphate. State University of New York Press, 1990.