Gaya APA

Stein, B, T, &, C. (2017). Believe It to Achieve It: Overcome Your Doubts, Let Go of the Past, and Unlock Your Full Potential . New York: Tarcherperige.

Gaya MLA

Stein, Brian, Tracy, &, Christina. "Believe It to Achieve It: Overcome Your Doubts, Let Go of the Past, and Unlock Your Full Potential". New York: Tarcherperige, 2017. Text.