Slater, R. (2003). 29 leadership secrets from Jack Welch (2nd ed.). McGraw-Hill.
Cita Chicago (17th ed.)Slater, Robert. 29 Leadership Secrets from Jack Welch. 2nd ed. New York: McGraw-Hill, 2003.
Cita MLA (8th ed.)Slater, Robert. 29 Leadership Secrets from Jack Welch. 2nd ed. McGraw-Hill, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.