MLA

Awwa, Muhammad Salim. On the Political System of the Islamic State. 3rd ed. Indianapolis, Ind.: American Trust Publications, 1980.

APA

Awwa, M. Salim. (1980). On the political system of the Islamic state. 3rd ed. Indianapolis, Ind.: American Trust Publications.

Chicago

Awwa, Muhammad Salim. On the Political System of the Islamic State. 3rd ed. Indianapolis, Ind.: American Trust Publications,, 1980.