Cita APA (7th ed.)
Lutz, R. A. (2003). Guts: 8 laws of business from one of the most innovative business leaders of our time (2nd ed.). Wiley.
Cita Chicago (17th ed.)
Lutz, Robert A. Guts: 8 Laws of Business from One of the Most Innovative Business Leaders of Our Time. 2nd ed. Hoboken, NJ: Wiley, 2003.
Cita MLA (9th ed.)
Lutz, Robert A. Guts: 8 Laws of Business from One of the Most Innovative Business Leaders of Our Time. 2nd ed. Wiley, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.