Gaya APA

Heroic Leadership. (2003). Illinois: [s.n.].

Gaya Chicago

Heroic Leadership. . Illinois: [s.n.], 2003. Text.

Gaya MLA

Heroic Leadership. . Illinois: [s.n.], 2003. Text.

Gaya Turabian

Heroic Leadership. Illinois: [s.n.], 2003. Print.