Harvard Business Review. (2017). Happiness. Harvard Business Review Press.
Citazione stile Chigago Style (17a edizione)Harvard Business Review. Happiness. Boston, Massachusetts: Harvard Business Review Press, 2017.
Citatione MLA (9a ed.)Harvard Business Review. Happiness. Harvard Business Review Press, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.