Ṭabarī, 8., & Powers, D. S. (1989). The Empire in transition. State University of New York Press.
Chicago Style (17th ed.) CitationṬabarī, 838?-923, and David Stephan Powers. The Empire in Transition. Albany: State University of New York Press, 1989.
MLA (9th ed.) CitationṬabarī, 838?-923, and David Stephan Powers. The Empire in Transition. State University of New York Press, 1989.
Warning: These citations may not always be 100% accurate.