Cita APA (7th ed.)

Hille, P. (1921). Briefe Peter Hilles an Else Lasker-Schüler.

Cita Chicago (17th ed.)

Hille, Peter. Briefe Peter Hilles an Else Lasker-Schüler. Berlin, 1921.

Cita MLA (8th ed.)

Hille, Peter. Briefe Peter Hilles an Else Lasker-Schüler. 1921.