Kocher, P. H. (1980). A reader's guide to The Silmarillion. Thames and Hudson.
Lua i Stíl Chicago (17ú heag.)Kocher, Paul Harold. A Reader's Guide to The Silmarillion. London: Thames and Hudson, 1980.
Lua MLA (8ú heag.)Kocher, Paul Harold. A Reader's Guide to The Silmarillion. Thames and Hudson, 1980.
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