Hager, P. J. \. S. (1997). Designing and delivering scientific, technical, and managerial presentations. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Hager, Peter J. \ Scheiber. Designing and Delivering Scientific, Technical, and Managerial Presentations. Estados Unidos: John Wiley & Sons, 1997.
Lua MLA (8ú heag.)Hager, Peter J. \ Scheiber. Designing and Delivering Scientific, Technical, and Managerial Presentations. John Wiley & Sons, 1997.
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