Cita APA (7th ed.)

(1954). Was Heisst Denken? Max Niemeyer.

Cita Chicago (17th ed.)

Was Heisst Denken? Tubinga: Max Niemeyer, 1954.

Cita MLA (9th ed.)

Was Heisst Denken? Max Niemeyer, 1954.

Atenció: Aquestes cites poden no estar 100% correctes.