Ball, H. Tagebuchauszüge 1916/17: Hugo Ball. 1895 - 1941.(1998).
Cita Chicago (17th ed.)Ball, Hugo. "Tagebuchauszüge 1916/17: Hugo Ball." 1895 - 1941.(1998) .
Cita MLA (8th ed.)Ball, Hugo. "Tagebuchauszüge 1916/17: Hugo Ball." 1895 - 1941.(1998), .
Atenció: Aquestes cites poden no estar 100% correctes.