APA (7e ed.) Bronvermelding

Johnson, S. (2009). Peaks and valleys: Making good and bad times work for you--at work and in life (1st Atria books hardcover ed.). Atria Books.

Chicago (17e ed.) Bronvermelding

Johnson, Spencer. Peaks and Valleys: Making Good and Bad Times Work for You--at Work and in Life. 1st Atria books hardcover ed. New York: Atria Books, 2009.

MLA (9e ed.) Bronvermelding

Johnson, Spencer. Peaks and Valleys: Making Good and Bad Times Work for You--at Work and in Life. 1st Atria books hardcover ed. Atria Books, 2009.