Παραπομπή σε μορφή APA (7η εκδ.)

Harrell, K. (2003). The attitude of leadership: Taking the lead and keeping it. Wiley.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Harrell, Keith. The Attitude of Leadership: Taking the Lead and Keeping It. Hoboken: Wiley, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

Harrell, Keith. The Attitude of Leadership: Taking the Lead and Keeping It. Wiley, 2003.