Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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