Powell, Brian, Epic and Chronicle: The 'Poema de mio Cid' and the 'Crónica de veinte reyes', MHRA Texts and Dissertations, 18 (MHRA, 1983)
Taylor, Barry, and Geoffrey West (eds), Historicist Essays on Hispano-Medieval Narrative in Memory of Roger M. Walker, Publications of the Modern Humanities Research Association, 16 (MHRA, 2005)