APA (7th ed.) Zitazioa
Barry, B. (2007). Speechless: The erosion of free expression in the American workplace. Berrett-Koehler Publishers.
Chicago Style (17th ed.) Zitazioa
Barry, Bruce. Speechless: The Erosion of Free Expression in the American Workplace. San Francisco: Berrett-Koehler Publishers, 2007.
MLA (9th ed.) Zitazioa
Barry, Bruce. Speechless: The Erosion of Free Expression in the American Workplace. Berrett-Koehler Publishers, 2007.
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