Bly, R. W. (2020). The copywriter's handbook (4th edition.). Henry Holt & Co.
Lua i Stíl Chicago (17ú heag.)Bly, Robert W. The Copywriter's Handbook. 4th edition. New York: Henry Holt & Co, 2020.
Lua MLA (9ú heag.)Bly, Robert W. The Copywriter's Handbook. 4th edition. Henry Holt & Co, 2020.
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