Lua APA (7ú heag.)
Orel, V. E. (2003). A handbook of Germanic etymology. Brill.
Lua i Stíl Chicago (17ú heag.)
Orel, Vladimir E. A Handbook of Germanic Etymology. Leiden ; Boston: Brill, 2003.
Lua MLA (9ú heag.)
Orel, Vladimir E. A Handbook of Germanic Etymology. Brill, 2003.
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