APA (7th ed.) Citation

Portnoy, R. A. (1999). Leadership: 4 competencies for success. Prentice Hall, Inc.

Chicago Style (17th ed.) Citation

Portnoy, Robert A. Leadership: 4 Competencies for Success. Upper Saddle River, New Jersey: Prentice Hall, Inc, 1999.

MLA (9th ed.) Citation

Portnoy, Robert A. Leadership: 4 Competencies for Success. Prentice Hall, Inc, 1999.