APA-viite (7. p.)

Ruland, J., & Crampton, P. (1976). Ferdinand Freiligrath 1876/1976. Inter Nationes.

Chicago-viite (17. p.)

Ruland, Josef, ja Patricia Crampton. Ferdinand Freiligrath 1876/1976. Bonn-Bad Godesberg: Inter Nationes, 1976.

MLA-viite (8. p.)

Ruland, Josef, ja Patricia Crampton. Ferdinand Freiligrath 1876/1976. Inter Nationes, 1976.