Sumner, D. E. (2013). Feature And Magazine Writing. Wiley-Blackwell.
Lua i Stíl Chicago (17ú heag.)Sumner, David E. Feature And Magazine Writing. Wiley-Blackwell, 2013.
Lua MLA (8ú heag.)Sumner, David E. Feature And Magazine Writing. Wiley-Blackwell, 2013.
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