Fulghum, R. (1989). All I really need to know I learned in kindergarten: Uncommon thoughts on common things. Villard Books.
Citazione stile Chigago Style (17a edizione)Fulghum, Robert. All I Really Need to Know I Learned in Kindergarten: Uncommon Thoughts on Common Things. New York: Villard Books, 1989.
Citatione MLA (9a ed.)Fulghum, Robert. All I Really Need to Know I Learned in Kindergarten: Uncommon Thoughts on Common Things. Villard Books, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.