Jefkins, F. (1995). Public relations techniques (2nd ed.). Oxford: Butterworth & Heinemann.
Chicago Stili AlıntıJefkins, Frank. Public Relations Techniques. 2nd ed. Oxford: Butterworth & Heinemann, 1995.
MLA AlıntıJefkins, Frank. Public Relations Techniques. 2nd ed. Oxford: Butterworth & Heinemann, 1995.
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