International Press Institute. Research Service. (1966). Press council and press codes: A summary prepared by teh IPI Research Service on the basis of texts published in IPI Report and other documents. International Press Institute.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)International Press Institute. Research Service. Press Council and Press Codes: A Summary Prepared by Teh IPI Research Service on the Basis of Texts Published in IPI Report and Other Documents. Zurich: International Press Institute, 1966.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)International Press Institute. Research Service. Press Council and Press Codes: A Summary Prepared by Teh IPI Research Service on the Basis of Texts Published in IPI Report and Other Documents. International Press Institute, 1966.
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