Trippen, N. (2009). Joseph Kardinal Höffner (1906-1987). Ferdinand Schöningh.
Chicago Style (17th ed.) CitationTrippen, Norbert. Joseph Kardinal Höffner (1906-1987). Paderborn [etc.]: Ferdinand Schöningh, 2009.
MLA (9th ed.) CitationTrippen, Norbert. Joseph Kardinal Höffner (1906-1987). Ferdinand Schöningh, 2009.
Warning: These citations may not always be 100% accurate.