Cita APA (7th ed.)

Eichhorn, H. (1993). Thomas Ring: Retrospektive.

Cita Chicago (17th ed.)

Eichhorn, Herbert. Thomas Ring: Retrospektive. Bietigheim-Bissingen [u.a.], 1993.

Cita MLA (8th ed.)

Eichhorn, Herbert. Thomas Ring: Retrospektive. 1993.