Tohutoro APA (7th ed.)
Hill and Knowlton International. (1967). Handbook on international public relations.
Tohutoru Kātū Chicago (17th ed.)
Hill and Knowlton International. Handbook on International Public Relations. 1967.
Tohutoro MLA (9th ed.)
Hill and Knowlton International. Handbook on International Public Relations. 1967.
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