Seth Godin. Start With Why: How Great Leaders Inspire Everyone to Take Action. Penguin Books.
Citazione stile Chigago Style (17a edizione)Seth Godin. Start With Why: How Great Leaders Inspire Everyone to Take Action. Penguin Books.
Citatione MLA (9a ed.)Seth Godin. Start With Why: How Great Leaders Inspire Everyone to Take Action. Penguin Books.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.