Cita APA (7th ed.)

Howell, J. P., & Costley, D. L. (2006). Understanding behaviors for effective leadership (Second edition.). Pearson Prentice Hall.

Cita Chicago (17th ed.)

Howell, Jon P., i Dan L. Costley. Understanding Behaviors for Effective Leadership. Second edition. Upper Saddle River, NJ: Pearson Prentice Hall, 2006.

Cita MLA (9th ed.)

Howell, Jon P., i Dan L. Costley. Understanding Behaviors for Effective Leadership. Second edition. Pearson Prentice Hall, 2006.