Cita APA (7a ed.)

Campbell, D. P. (2002). In focus: Leadership characteristics - nine keys to good leadership. Center for Creative Leadership.

Cita Chicago Style (17a ed.)

Campbell, David P. In Focus: Leadership Characteristics - Nine Keys to Good Leadership. Greensboro, North Carolina: Center for Creative Leadership, 2002.

Cita MLA (9a ed.)

Campbell, David P. In Focus: Leadership Characteristics - Nine Keys to Good Leadership. Center for Creative Leadership, 2002.