Gregory, A. (2015). Planning and Managing Public Relations Campaigns A Strategic Approach 4th Ed. Kogan Page.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGregory, Anne. Planning and Managing Public Relations Campaigns A Strategic Approach 4th Ed. Kogan Page, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGregory, Anne. Planning and Managing Public Relations Campaigns A Strategic Approach 4th Ed. Kogan Page, 2015.
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