APA-Zitierstil (7. Ausg.)

(2006). What I know now: Letters to my younger self (1. ed.). Broadway Books.

Chicago-Zitierstil (17. Ausg.)

What I Know Now: Letters to My Younger Self. 1. ed. New York: Broadway Books, 2006.

MLA-Zitierstil (9. Ausg.)

What I Know Now: Letters to My Younger Self. 1. ed. Broadway Books, 2006.