(1989). Wolfgang Frankenstein: Werkkatalog 2.
Cita Chicago (17th ed.)Wolfgang Frankenstein: Werkkatalog 2. Berlin, 1989.
Cita MLA (8th ed.)Wolfgang Frankenstein: Werkkatalog 2. 1989.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)