Saenz-Diez, Juan Ignacio, Las Acunaciones del Califato de Cordoba en el Norte de Africa, Vico & Segarra, Madrid, 1984, 87 pages, softcover. The first part of the book is a discussion in Spanish of Umayyad coins from Cordoba, Spain. The second part is a discussion of coins of Umayyad Spain issued by Hisham II from North African mints, ex James Farr Collection Library.
Estimate: 10-20 USD