Vallentin, B. (1931). Winckelmann: Von Berthold Vallentin. Bondi.
Cita Chicago (17th ed.)Vallentin, Berthold. Winckelmann: Von Berthold Vallentin. Berlin: Bondi, 1931.
Cita MLA (8th ed.)Vallentin, Berthold. Winckelmann: Von Berthold Vallentin. Bondi, 1931.
Atenció: Aquestes cites poden no estar 100% correctes.