APA-viite

Waugh, S. (2006). Out of my comfort zone: The autobiography. Penguin Books.

Chicago-tyylinen lähdeviittaus

Waugh, Steve. Out of My Comfort Zone: The Autobiography. New York: Penguin Books, 2006.

MLA-viite

Waugh, Steve. Out of My Comfort Zone: The Autobiography. Penguin Books, 2006.