APA-Zitierstil (7. Ausg.)

Lewis, B. (1940). The origins of Ismā'ilism: A study of the historical background of the Fāṭimid Caliphate (1. publ.). Heffer.

Chicago-Zitierstil (17. Ausg.)

Lewis, Bernard. The Origins of Ismā'ilism: A Study of the Historical Background of the Fāṭimid Caliphate. 1. publ. Cambridge: Heffer, 1940.

MLA-Zitierstil (9. Ausg.)

Lewis, Bernard. The Origins of Ismā'ilism: A Study of the Historical Background of the Fāṭimid Caliphate. 1. publ. Heffer, 1940.