Translated from the Arabic.
The theory and the practice of market law in medieval Islam : a study of Kit̄ab Nịs̄ab al-Ịhtis̄ab of ʿUmar b. Mụhammad al-Sun̄am̄i (fl. 7th-8th/13th-14th century) by Mūʾil Yūsuf ʿIzz al-Dīn. ISBN 090609433X. Published by E.J.W. Gibb Memorial Trust in 1997. Publication and catalogue information, links to buy online and reader comments.