METZLER, K. Newsgathering#Ken Metzler. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)METZLER, Ken. Newsgathering#Ken Metzler. Prentice-Hall.
Lua MLA (8ú heag.)METZLER, Ken. Newsgathering#Ken Metzler. Prentice-Hall.
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