Dyfyniad APA

Seitel, F. P. (2011). The Practice of Public Relations eleventh edition. Pearson.

Dyfyniad Arddull Chicago

Seitel, Fraser P. The Practice of Public Relations Eleventh Edition. Pearson, 2011.

Dyfyniad MLA

Seitel, Fraser P. The Practice of Public Relations Eleventh Edition. Pearson, 2011.

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