APA aipamena

Barry Gibbons. (2007). Speak Easy: 52 brilliant ideas for giving stunning speeches. Infinite Ideas.

Chicago Style aipamena

Barry Gibbons. Speak Easy: 52 Brilliant Ideas for Giving Stunning Speeches. Infinite Ideas, 2007.

MLA aipamena

Barry Gibbons. Speak Easy: 52 Brilliant Ideas for Giving Stunning Speeches. Infinite Ideas, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.