Style de citation APA (7e éd.)

Sulaiman, I., & Sulaiman, I. (1987). The Islamic state and the challenge of history: Ideals, policies and operation of the Sokoto Caliphate. Mansell.

Style de citation Chicago (17e éd.)

Sulaiman, Ibraheem, et Ibrahim Sulaiman. The Islamic State and the Challenge of History: Ideals, Policies and Operation of the Sokoto Caliphate. London [u.a.]: Mansell, 1987.

Style de citation MLA (8e éd.)

Sulaiman, Ibraheem, et Ibrahim Sulaiman. The Islamic State and the Challenge of History: Ideals, Policies and Operation of the Sokoto Caliphate. Mansell, 1987.