APA-referens (7:e uppl.)

Hackman, M. Z., & Johnson, C. E. (2004). Leadership: A communication perspective (4th ed.). Waveland Press.

Chicago-referens (17:e uppl.)

Hackman, Michael Z., och Craig E. Johnson. Leadership: A Communication Perspective. 4th ed. Prospect Heights, Ill.: Waveland Press, 2004.

MLA-referens (9:e uppl.)

Hackman, Michael Z., och Craig E. Johnson. Leadership: A Communication Perspective. 4th ed. Waveland Press, 2004.