Cita APA (7th ed.)
OTTO, Friedrich [Innsbruck 1898] Pseud.
Cita Chicago (17th ed.)
OTTO, Friedrich [Innsbruck 1898] Pseud.
Cita MLA (9th ed.)
OTTO, Friedrich [Innsbruck 1898] Pseud.
Atenció: Aquestes cites poden no estar 100% correctes.