Powell, H. A neglected Faustian drama and its cultural roots in seventeenth-century Germany: Hugh Powell. Faust through four centuries : retrospect and analysis=Vierhundert Jahre Faust : Rückblick und Analyse.(1989).

Powell, Hugh. "A Neglected Faustian Drama and Its Cultural Roots in Seventeenth-century Germany: Hugh Powell." Faust Through Four Centuries : Retrospect and Analysis=Vierhundert Jahre Faust : Rückblick Und Analyse.(1989) .

Powell, Hugh. "A Neglected Faustian Drama and Its Cultural Roots in Seventeenth-century Germany: Hugh Powell." Faust Through Four Centuries : Retrospect and Analysis=Vierhundert Jahre Faust : Rückblick Und Analyse.(1989), .