Holstein Willam J. (2008). Manage the Media. Harvard Bus. School Pub.
Lua i Stíl Chicago (17ú heag.)Holstein Willam J. Manage the Media. Bostan: Harvard Bus. School Pub, 2008.
Lua MLA (9ú heag.)Holstein Willam J. Manage the Media. Harvard Bus. School Pub, 2008.
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