Cita APA (7th ed.)

Seefeldt, D. (1981). Stress was tun ? Verlag Tribüne.

Cita Chicago (17th ed.)

Seefeldt, Dieter. Stress Was Tun ? Berlin: Verlag Tribüne, 1981.

Cita MLA (8th ed.)

Seefeldt, Dieter. Stress Was Tun ? Verlag Tribüne, 1981.