Romberg, O. R. (1989). Widerstand und Exil 1933 - 1945 Schriftenreihe.
Chicago Style (17th ed.) CitationRomberg, Otto R. "Widerstand Und Exil 1933 - 1945." Schriftenreihe 1989.
MLA (9th ed.) CitationRomberg, Otto R. "Widerstand Und Exil 1933 - 1945." Schriftenreihe, 1989.
Warning: These citations may not always be 100% accurate.