Prakke, H., & Hardt, H. (1971). Towards a philosophy of publicistics. Center of the advanced studies of communication, the University of Iowa.
Lua i Stíl Chicago (17ú heag.)Prakke, Henk, agus Hanno Hardt. Towards a Philosophy of Publicistics. Iowa: Center of the advanced studies of communication, the University of Iowa, 1971.
Lua MLA (8ú heag.)Prakke, Henk, agus Hanno Hardt. Towards a Philosophy of Publicistics. Center of the advanced studies of communication, the University of Iowa, 1971.
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