Biber, A. R. (1907). Studien zu William Morris' prose-romances. Inaugural-dissertation. Julius Abel.
Lua i Stíl Chicago (17ú heag.)Biber, Arthur Reinhold. Studien Zu William Morris' Prose-romances. Inaugural-dissertation. Greifswald: Julius Abel, 1907.
Lua MLA (8ú heag.)Biber, Arthur Reinhold. Studien Zu William Morris' Prose-romances. Inaugural-dissertation. Julius Abel, 1907.
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