APA (7th ed.) Zitazioa

Welch, S. (2009). 10-10-10: 10 minutes, 10 months, 10 years - a life-transforming idea. Scribner.

Chicago Style (17th ed.) Zitazioa

Welch, Suzy. 10-10-10: 10 Minutes, 10 Months, 10 Years - a Life-transforming Idea. New York, New York: Scribner, 2009.

MLA (9th ed.) Zitazioa

Welch, Suzy. 10-10-10: 10 Minutes, 10 Months, 10 Years - a Life-transforming Idea. Scribner, 2009.