APA (7th ed.) Citation

Ess, J. v. (1971). ʻUmar II and his epistle against the Qadariya. Abr-Nahrain, 12, 19-26.

Chicago Style (17th ed.) Citation

Ess, Josef van. "ʻUmar II and His Epistle Against the Qadariya." Abr-Nahrain 12 (1971): 19-26.

MLA (9th ed.) Citation

Ess, Josef van. "ʻUmar II and His Epistle Against the Qadariya." Abr-Nahrain, vol. 12, 1971, pp. 19-26.

Warning: These citations may not always be 100% accurate.