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.
Citace podle Chicago (17th ed.)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.
Citace podle MLA (9th ed.)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.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..