APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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