Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (8ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.