Walzel, O. F. (1965). German romanticsm. F. Ungar Pub.
Lua i Stíl Chicago (17ú heag.)Walzel, Oskar Franz. German Romanticsm. New York: F. Ungar Pub, 1965.
Lua MLA (9ú heag.)Walzel, Oskar Franz. German Romanticsm. F. Ungar Pub, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.