APA (7. basım) Alıntı

Ruland, J. (1976). Ferdinand Freiligrath: 1876/1976. Inter Nationes.

Chicago Style (17. basım) Atıf

Ruland, Josef. Ferdinand Freiligrath: 1876/1976. Bonn/Bad Godesberg: Inter Nationes, 1976.

MLA (8th ed.) Atıf

Ruland, Josef. Ferdinand Freiligrath: 1876/1976. Inter Nationes, 1976.