Krügel, F. Ferdinand Raimund's Gutenstein Poems: Fred Krügel. Essays on German literature : in honour of G. Joyce Hallamore.(1968).
Lua i Stíl Chicago (17ú heag.)Krügel, Fred. "Ferdinand Raimund's Gutenstein Poems: Fred Krügel." Essays on German Literature : In Honour of G. Joyce Hallamore.(1968) .
Lua MLA (8ú heag.)Krügel, Fred. "Ferdinand Raimund's Gutenstein Poems: Fred Krügel." Essays on German Literature : In Honour of G. Joyce Hallamore.(1968), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.