O'Callaghan, J. F. (1989). The cortes of Castile-León, 1188-1350. University of Pennsylvania Press.
Cita Chicago Style (17a ed.)O'Callaghan, Joseph F. The Cortes of Castile-León, 1188-1350. Philadelphia: University of Pennsylvania Press, 1989.
Cita MLA (8a ed.)O'Callaghan, Joseph F. The Cortes of Castile-León, 1188-1350. University of Pennsylvania Press, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.