Bono, E. d. (2008). Creativity workout: 62 exercises to unlock your most creative ideas. Ulysses Press.
Citazione stile Chigago Style (17a edizione)Bono, Edward de. Creativity Workout: 62 Exercises to Unlock Your Most Creative Ideas. Berkeley: Ulysses Press, 2008.
Citatione MLA (9a ed.)Bono, Edward de. Creativity Workout: 62 Exercises to Unlock Your Most Creative Ideas. Ulysses Press, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.