Lua APA (7ú heag.)
Doyle, A. C. The Valley Of Fear and The Case-Book Of Sherlock Holmes.
Lua i Stíl Chicago (17ú heag.)Doyle, A. C. The Valley Of Fear and The Case-Book Of Sherlock Holmes.
Lua MLA (8ú heag.)Doyle, A. C. The Valley Of Fear and The Case-Book Of Sherlock Holmes.
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