Navarra, T., & Kerr, T. (1989). Playing it smart: What to do when you're on your own. Barron's.
Citazione stile Chigago Style (17a edizione)Navarra, Tova, e Tom Kerr. Playing It Smart: What to Do When You're on Your Own. New York: Barron's, 1989.
Citatione MLA (9a ed.)Navarra, Tova, e Tom Kerr. Playing It Smart: What to Do When You're on Your Own. Barron's, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.