Caliandro, A., & Lenson, B. (2000). Simple steps: Ten things you can do to create an exceptional life. New York: McGraw-Hill.
Chicago Style CitationCaliandro, Arthur., i Barry Lenson. Simple Steps: Ten Things You Can Do to Create an Exceptional Life. New York: McGraw-Hill, 2000.
Cita MLACaliandro, Arthur., i Barry Lenson. Simple Steps: Ten Things You Can Do to Create an Exceptional Life. New York: McGraw-Hill, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.