Griffin, E. (2008). A first look at communication theory.-- Ed.6. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Griffin, EM. A First Look at Communication Theory.-- Ed.6. Boston: McGraw Hill, 2008.
Lua MLA (9ú heag.)Griffin, EM. A First Look at Communication Theory.-- Ed.6. McGraw Hill, 2008.
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