'Ulwan, A. N. (1986). Ahkam al Zakat 'ala daw'i al madhahib al arba'ah. Dar al-Salam.
Chicago Style (17th ed.) Citation'Ulwan, Abdullah Nasih. Ahkam Al Zakat 'Ala Daw'i Al Madhahib Al Arba'ah. Dar al-Salam, 1986.
MLA (8th ed.) Citation'Ulwan, Abdullah Nasih. Ahkam Al Zakat 'Ala Daw'i Al Madhahib Al Arba'ah. Dar al-Salam, 1986.
Warning: These citations may not always be 100% accurate.