Al-Shafi'i, M. b. I., & Khadduri, M. 1. (1997). Al-risala fi usul al-fiqh: Treatise on the foundations of Islamic jurisprudence (Second Edition.). Islamic Text Society.
Chicago Style (17th ed.) CitationAl-Shafi'i, Muhammad bin Idris, and Majid( 1908-) Khadduri. Al-risala Fi Usul Al-fiqh: Treatise on the Foundations of Islamic Jurisprudence. Second Edition. Cambridge: Islamic Text Society, 1997.
MLA (8th ed.) CitationAl-Shafi'i, Muhammad bin Idris, and Majid( 1908-) Khadduri. Al-risala Fi Usul Al-fiqh: Treatise on the Foundations of Islamic Jurisprudence. Second Edition. Islamic Text Society, 1997.
Warning: These citations may not always be 100% accurate.