The learned king :
the reign of Alfonso X of Castile /
Joseph F. O'Callaghan.
APA Citation
O'Callaghan, J. F. (1993). The learned king: the reign of Alfonso X of Castile. Philadelphia: University of Pennsylvania Press.
MLA Citation
O'Callaghan, Joseph F. The Learned King: the Reign of Alfonso X of Castile. Philadelphia: University of Pennsylvania Press, 1993.
Warning: These citations may not always be complete (especially for serials).