Citazione Stile APA (7a Edizione)

Greenfield, J. (2001). Challenges of leadership: C E O exchange. Films Media Group.

Citazione stile Chigago Style (17a edizione)

Greenfield, Jeff. Challenges of Leadership: C E O Exchange. Hamilton, NJ: Films Media Group, 2001.

Citatione MLA (9a ed.)

Greenfield, Jeff. Challenges of Leadership: C E O Exchange. Films Media Group, 2001.