Dyfyniad APA

Howell, J. P., & Costley, D. L. (2006). Understanding behaviors for effective leadership (2nd ed.). Pearson/Prentice Hall.

Dyfyniad Arddull Chicago

Howell, Jon P., and Dan L. Costley. Understanding Behaviors for Effective Leadership. 2nd ed. Upper Saddle River, N.J. ; New Delhi: Pearson/Prentice Hall, 2006.

Dyfyniad MLA

Howell, Jon P., and Dan L. Costley. Understanding Behaviors for Effective Leadership. 2nd ed. Pearson/Prentice Hall, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.