APA (7th ed.) Citation

Kennedy, H. (1981). The early Abbasid Caliphate. Croom Helm Ltd.

Chicago Style (17th ed.) Citation

Kennedy, Hugh. The Early Abbasid Caliphate. London: Croom Helm Ltd, 1981.

MLA (9th ed.) Citation

Kennedy, Hugh. The Early Abbasid Caliphate. Croom Helm Ltd, 1981.

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